xref: /llvm-project/libcxx/include/valarray (revision ac1d560709d2ecfe83a98285d4a13afae6db4316)
1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP_VALARRAY
11#define _LIBCPP_VALARRAY
12
13/*
14    valarray synopsis
15
16namespace std
17{
18
19template<class T>
20class valarray
21{
22public:
23    typedef T value_type;
24
25    // construct/destroy:
26    valarray();
27    explicit valarray(size_t n);
28    valarray(const value_type& x, size_t n);
29    valarray(const value_type* px, size_t n);
30    valarray(const valarray& v);
31    valarray(valarray&& v) noexcept;
32    valarray(const slice_array<value_type>& sa);
33    valarray(const gslice_array<value_type>& ga);
34    valarray(const mask_array<value_type>& ma);
35    valarray(const indirect_array<value_type>& ia);
36    valarray(initializer_list<value_type> il);
37    ~valarray();
38
39    // assignment:
40    valarray& operator=(const valarray& v);
41    valarray& operator=(valarray&& v) noexcept;
42    valarray& operator=(initializer_list<value_type> il);
43    valarray& operator=(const value_type& x);
44    valarray& operator=(const slice_array<value_type>& sa);
45    valarray& operator=(const gslice_array<value_type>& ga);
46    valarray& operator=(const mask_array<value_type>& ma);
47    valarray& operator=(const indirect_array<value_type>& ia);
48
49    // element access:
50    const value_type& operator[](size_t i) const;
51    value_type&       operator[](size_t i);
52
53    // subset operations:
54    valarray                   operator[](slice s) const;
55    slice_array<value_type>    operator[](slice s);
56    valarray                   operator[](const gslice& gs) const;
57    gslice_array<value_type>   operator[](const gslice& gs);
58    valarray                   operator[](const valarray<bool>& vb) const;
59    mask_array<value_type>     operator[](const valarray<bool>& vb);
60    valarray                   operator[](const valarray<size_t>& vs) const;
61    indirect_array<value_type> operator[](const valarray<size_t>& vs);
62
63    // unary operators:
64    valarray       operator+() const;
65    valarray       operator-() const;
66    valarray       operator~() const;
67    valarray<bool> operator!() const;
68
69    // computed assignment:
70    valarray& operator*= (const value_type& x);
71    valarray& operator/= (const value_type& x);
72    valarray& operator%= (const value_type& x);
73    valarray& operator+= (const value_type& x);
74    valarray& operator-= (const value_type& x);
75    valarray& operator^= (const value_type& x);
76    valarray& operator&= (const value_type& x);
77    valarray& operator|= (const value_type& x);
78    valarray& operator<<=(const value_type& x);
79    valarray& operator>>=(const value_type& x);
80
81    valarray& operator*= (const valarray& v);
82    valarray& operator/= (const valarray& v);
83    valarray& operator%= (const valarray& v);
84    valarray& operator+= (const valarray& v);
85    valarray& operator-= (const valarray& v);
86    valarray& operator^= (const valarray& v);
87    valarray& operator|= (const valarray& v);
88    valarray& operator&= (const valarray& v);
89    valarray& operator<<=(const valarray& v);
90    valarray& operator>>=(const valarray& v);
91
92    // member functions:
93    void swap(valarray& v) noexcept;
94
95    size_t size() const;
96
97    value_type sum() const;
98    value_type min() const;
99    value_type max() const;
100
101    valarray shift (int i) const;
102    valarray cshift(int i) const;
103    valarray apply(value_type f(value_type)) const;
104    valarray apply(value_type f(const value_type&)) const;
105    void resize(size_t n, value_type x = value_type());
106};
107
108template<class T, size_t cnt> valarray(const T(&)[cnt], size_t) -> valarray<T>;
109
110class slice
111{
112public:
113    slice();
114    slice(size_t start, size_t size, size_t stride);
115
116    size_t start()  const;
117    size_t size()   const;
118    size_t stride() const;
119
120    friend bool operator==(const slice& x, const slice& y); // since C++20
121};
122
123template <class T>
124class slice_array
125{
126public:
127    typedef T value_type;
128
129    const slice_array& operator=(const slice_array& sa) const;
130    void operator=  (const valarray<value_type>& v) const;
131    void operator*= (const valarray<value_type>& v) const;
132    void operator/= (const valarray<value_type>& v) const;
133    void operator%= (const valarray<value_type>& v) const;
134    void operator+= (const valarray<value_type>& v) const;
135    void operator-= (const valarray<value_type>& v) const;
136    void operator^= (const valarray<value_type>& v) const;
137    void operator&= (const valarray<value_type>& v) const;
138    void operator|= (const valarray<value_type>& v) const;
139    void operator<<=(const valarray<value_type>& v) const;
140    void operator>>=(const valarray<value_type>& v) const;
141
142    void operator=(const value_type& x) const;
143    void operator=(const valarray<T>& val_arr) const;
144
145    slice_array() = delete;
146};
147
148class gslice
149{
150public:
151    gslice();
152    gslice(size_t start, const valarray<size_t>& size,
153                         const valarray<size_t>& stride);
154
155    size_t           start()  const;
156    valarray<size_t> size()   const;
157    valarray<size_t> stride() const;
158};
159
160template <class T>
161class gslice_array
162{
163public:
164    typedef T value_type;
165
166    void operator=  (const valarray<value_type>& v) const;
167    void operator*= (const valarray<value_type>& v) const;
168    void operator/= (const valarray<value_type>& v) const;
169    void operator%= (const valarray<value_type>& v) const;
170    void operator+= (const valarray<value_type>& v) const;
171    void operator-= (const valarray<value_type>& v) const;
172    void operator^= (const valarray<value_type>& v) const;
173    void operator&= (const valarray<value_type>& v) const;
174    void operator|= (const valarray<value_type>& v) const;
175    void operator<<=(const valarray<value_type>& v) const;
176    void operator>>=(const valarray<value_type>& v) const;
177
178    gslice_array(const gslice_array& ga);
179    ~gslice_array();
180    const gslice_array& operator=(const gslice_array& ga) const;
181    void operator=(const value_type& x) const;
182
183    gslice_array() = delete;
184};
185
186template <class T>
187class mask_array
188{
189public:
190    typedef T value_type;
191
192    void operator=  (const valarray<value_type>& v) const;
193    void operator*= (const valarray<value_type>& v) const;
194    void operator/= (const valarray<value_type>& v) const;
195    void operator%= (const valarray<value_type>& v) const;
196    void operator+= (const valarray<value_type>& v) const;
197    void operator-= (const valarray<value_type>& v) const;
198    void operator^= (const valarray<value_type>& v) const;
199    void operator&= (const valarray<value_type>& v) const;
200    void operator|= (const valarray<value_type>& v) const;
201    void operator<<=(const valarray<value_type>& v) const;
202    void operator>>=(const valarray<value_type>& v) const;
203
204    mask_array(const mask_array& ma);
205    ~mask_array();
206    const mask_array& operator=(const mask_array& ma) const;
207    void operator=(const value_type& x) const;
208
209    mask_array() = delete;
210};
211
212template <class T>
213class indirect_array
214{
215public:
216    typedef T value_type;
217
218    void operator=  (const valarray<value_type>& v) const;
219    void operator*= (const valarray<value_type>& v) const;
220    void operator/= (const valarray<value_type>& v) const;
221    void operator%= (const valarray<value_type>& v) const;
222    void operator+= (const valarray<value_type>& v) const;
223    void operator-= (const valarray<value_type>& v) const;
224    void operator^= (const valarray<value_type>& v) const;
225    void operator&= (const valarray<value_type>& v) const;
226    void operator|= (const valarray<value_type>& v) const;
227    void operator<<=(const valarray<value_type>& v) const;
228    void operator>>=(const valarray<value_type>& v) const;
229
230    indirect_array(const indirect_array& ia);
231    ~indirect_array();
232    const indirect_array& operator=(const indirect_array& ia) const;
233    void operator=(const value_type& x) const;
234
235    indirect_array() = delete;
236};
237
238template<class T> void swap(valarray<T>& x, valarray<T>& y) noexcept;
239
240template<class T> valarray<T> operator* (const valarray<T>& x, const valarray<T>& y);
241template<class T> valarray<T> operator* (const valarray<T>& x, const T& y);
242template<class T> valarray<T> operator* (const T& x, const valarray<T>& y);
243
244template<class T> valarray<T> operator/ (const valarray<T>& x, const valarray<T>& y);
245template<class T> valarray<T> operator/ (const valarray<T>& x, const T& y);
246template<class T> valarray<T> operator/ (const T& x, const valarray<T>& y);
247
248template<class T> valarray<T> operator% (const valarray<T>& x, const valarray<T>& y);
249template<class T> valarray<T> operator% (const valarray<T>& x, const T& y);
250template<class T> valarray<T> operator% (const T& x, const valarray<T>& y);
251
252template<class T> valarray<T> operator+ (const valarray<T>& x, const valarray<T>& y);
253template<class T> valarray<T> operator+ (const valarray<T>& x, const T& y);
254template<class T> valarray<T> operator+ (const T& x, const valarray<T>& y);
255
256template<class T> valarray<T> operator- (const valarray<T>& x, const valarray<T>& y);
257template<class T> valarray<T> operator- (const valarray<T>& x, const T& y);
258template<class T> valarray<T> operator- (const T& x, const valarray<T>& y);
259
260template<class T> valarray<T> operator^ (const valarray<T>& x, const valarray<T>& y);
261template<class T> valarray<T> operator^ (const valarray<T>& x, const T& y);
262template<class T> valarray<T> operator^ (const T& x, const valarray<T>& y);
263
264template<class T> valarray<T> operator& (const valarray<T>& x, const valarray<T>& y);
265template<class T> valarray<T> operator& (const valarray<T>& x, const T& y);
266template<class T> valarray<T> operator& (const T& x, const valarray<T>& y);
267
268template<class T> valarray<T> operator| (const valarray<T>& x, const valarray<T>& y);
269template<class T> valarray<T> operator| (const valarray<T>& x, const T& y);
270template<class T> valarray<T> operator| (const T& x, const valarray<T>& y);
271
272template<class T> valarray<T> operator<<(const valarray<T>& x, const valarray<T>& y);
273template<class T> valarray<T> operator<<(const valarray<T>& x, const T& y);
274template<class T> valarray<T> operator<<(const T& x, const valarray<T>& y);
275
276template<class T> valarray<T> operator>>(const valarray<T>& x, const valarray<T>& y);
277template<class T> valarray<T> operator>>(const valarray<T>& x, const T& y);
278template<class T> valarray<T> operator>>(const T& x, const valarray<T>& y);
279
280template<class T> valarray<bool> operator&&(const valarray<T>& x, const valarray<T>& y);
281template<class T> valarray<bool> operator&&(const valarray<T>& x, const T& y);
282template<class T> valarray<bool> operator&&(const T& x, const valarray<T>& y);
283
284template<class T> valarray<bool> operator||(const valarray<T>& x, const valarray<T>& y);
285template<class T> valarray<bool> operator||(const valarray<T>& x, const T& y);
286template<class T> valarray<bool> operator||(const T& x, const valarray<T>& y);
287
288template<class T> valarray<bool> operator==(const valarray<T>& x, const valarray<T>& y);
289template<class T> valarray<bool> operator==(const valarray<T>& x, const T& y);
290template<class T> valarray<bool> operator==(const T& x, const valarray<T>& y);
291
292template<class T> valarray<bool> operator!=(const valarray<T>& x, const valarray<T>& y);
293template<class T> valarray<bool> operator!=(const valarray<T>& x, const T& y);
294template<class T> valarray<bool> operator!=(const T& x, const valarray<T>& y);
295
296template<class T> valarray<bool> operator< (const valarray<T>& x, const valarray<T>& y);
297template<class T> valarray<bool> operator< (const valarray<T>& x, const T& y);
298template<class T> valarray<bool> operator< (const T& x, const valarray<T>& y);
299
300template<class T> valarray<bool> operator> (const valarray<T>& x, const valarray<T>& y);
301template<class T> valarray<bool> operator> (const valarray<T>& x, const T& y);
302template<class T> valarray<bool> operator> (const T& x, const valarray<T>& y);
303
304template<class T> valarray<bool> operator<=(const valarray<T>& x, const valarray<T>& y);
305template<class T> valarray<bool> operator<=(const valarray<T>& x, const T& y);
306template<class T> valarray<bool> operator<=(const T& x, const valarray<T>& y);
307
308template<class T> valarray<bool> operator>=(const valarray<T>& x, const valarray<T>& y);
309template<class T> valarray<bool> operator>=(const valarray<T>& x, const T& y);
310template<class T> valarray<bool> operator>=(const T& x, const valarray<T>& y);
311
312template<class T> valarray<T> abs (const valarray<T>& x);
313template<class T> valarray<T> acos (const valarray<T>& x);
314template<class T> valarray<T> asin (const valarray<T>& x);
315template<class T> valarray<T> atan (const valarray<T>& x);
316
317template<class T> valarray<T> atan2(const valarray<T>& x, const valarray<T>& y);
318template<class T> valarray<T> atan2(const valarray<T>& x, const T& y);
319template<class T> valarray<T> atan2(const T& x, const valarray<T>& y);
320
321template<class T> valarray<T> cos (const valarray<T>& x);
322template<class T> valarray<T> cosh (const valarray<T>& x);
323template<class T> valarray<T> exp (const valarray<T>& x);
324template<class T> valarray<T> log (const valarray<T>& x);
325template<class T> valarray<T> log10(const valarray<T>& x);
326
327template<class T> valarray<T> pow(const valarray<T>& x, const valarray<T>& y);
328template<class T> valarray<T> pow(const valarray<T>& x, const T& y);
329template<class T> valarray<T> pow(const T& x, const valarray<T>& y);
330
331template<class T> valarray<T> sin (const valarray<T>& x);
332template<class T> valarray<T> sinh (const valarray<T>& x);
333template<class T> valarray<T> sqrt (const valarray<T>& x);
334template<class T> valarray<T> tan (const valarray<T>& x);
335template<class T> valarray<T> tanh (const valarray<T>& x);
336
337template <class T> unspecified1 begin(valarray<T>& v);
338template <class T> unspecified2 begin(const valarray<T>& v);
339template <class T> unspecified1 end(valarray<T>& v);
340template <class T> unspecified2 end(const valarray<T>& v);
341
342}  // std
343
344*/
345
346#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
347#  include <__cxx03/valarray>
348#else
349#  include <__algorithm/copy.h>
350#  include <__algorithm/count.h>
351#  include <__algorithm/fill.h>
352#  include <__algorithm/max_element.h>
353#  include <__algorithm/min.h>
354#  include <__algorithm/min_element.h>
355#  include <__algorithm/unwrap_iter.h>
356#  include <__assert>
357#  include <__config>
358#  include <__cstddef/ptrdiff_t.h>
359#  include <__functional/operations.h>
360#  include <__memory/addressof.h>
361#  include <__memory/allocator.h>
362#  include <__memory/uninitialized_algorithms.h>
363#  include <__type_traits/decay.h>
364#  include <__type_traits/remove_reference.h>
365#  include <__utility/move.h>
366#  include <__utility/swap.h>
367#  include <cmath>
368#  include <version>
369
370// standard-mandated includes
371
372// [valarray.syn]
373#  include <initializer_list>
374
375#  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
376#    pragma GCC system_header
377#  endif
378
379_LIBCPP_PUSH_MACROS
380#  include <__undef_macros>
381
382_LIBCPP_BEGIN_NAMESPACE_STD
383
384template <class _Tp>
385class _LIBCPP_TEMPLATE_VIS valarray;
386
387class _LIBCPP_TEMPLATE_VIS slice {
388  size_t __start_;
389  size_t __size_;
390  size_t __stride_;
391
392public:
393  _LIBCPP_HIDE_FROM_ABI slice() : __start_(0), __size_(0), __stride_(0) {}
394
395  _LIBCPP_HIDE_FROM_ABI slice(size_t __start, size_t __size, size_t __stride)
396      : __start_(__start), __size_(__size), __stride_(__stride) {}
397
398  _LIBCPP_HIDE_FROM_ABI size_t start() const { return __start_; }
399  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __size_; }
400  _LIBCPP_HIDE_FROM_ABI size_t stride() const { return __stride_; }
401
402#  if _LIBCPP_STD_VER >= 20
403
404  _LIBCPP_HIDE_FROM_ABI friend bool operator==(const slice& __x, const slice& __y) {
405    return __x.start() == __y.start() && __x.size() == __y.size() && __x.stride() == __y.stride();
406  }
407
408#  endif
409};
410
411template <class _Tp>
412class _LIBCPP_TEMPLATE_VIS slice_array;
413class _LIBCPP_EXPORTED_FROM_ABI gslice;
414template <class _Tp>
415class _LIBCPP_TEMPLATE_VIS gslice_array;
416template <class _Tp>
417class _LIBCPP_TEMPLATE_VIS mask_array;
418template <class _Tp>
419class _LIBCPP_TEMPLATE_VIS indirect_array;
420
421template <class _Tp>
422_LIBCPP_HIDE_FROM_ABI _Tp* begin(valarray<_Tp>& __v);
423
424template <class _Tp>
425_LIBCPP_HIDE_FROM_ABI const _Tp* begin(const valarray<_Tp>& __v);
426
427template <class _Tp>
428_LIBCPP_HIDE_FROM_ABI _Tp* end(valarray<_Tp>& __v);
429
430template <class _Tp>
431_LIBCPP_HIDE_FROM_ABI const _Tp* end(const valarray<_Tp>& __v);
432
433template <class _Op, class _A0>
434struct _UnaryOp {
435  typedef typename _Op::__result_type __result_type;
436  using value_type = __decay_t<__result_type>;
437
438  _Op __op_;
439  _A0 __a0_;
440
441  _LIBCPP_HIDE_FROM_ABI _UnaryOp(const _Op& __op, const _A0& __a0) : __op_(__op), __a0_(__a0) {}
442
443  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __op_(__a0_[__i]); }
444
445  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __a0_.size(); }
446};
447
448template <class _Op, class _A0, class _A1>
449struct _BinaryOp {
450  typedef typename _Op::__result_type __result_type;
451  using value_type = __decay_t<__result_type>;
452
453  _Op __op_;
454  _A0 __a0_;
455  _A1 __a1_;
456
457  _LIBCPP_HIDE_FROM_ABI _BinaryOp(const _Op& __op, const _A0& __a0, const _A1& __a1)
458      : __op_(__op), __a0_(__a0), __a1_(__a1) {}
459
460  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __op_(__a0_[__i], __a1_[__i]); }
461
462  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __a0_.size(); }
463};
464
465template <class _Tp>
466class __scalar_expr {
467public:
468  typedef _Tp value_type;
469  typedef const _Tp& __result_type;
470
471private:
472  const value_type& __t_;
473  size_t __s_;
474
475public:
476  _LIBCPP_HIDE_FROM_ABI explicit __scalar_expr(const value_type& __t, size_t __s) : __t_(__t), __s_(__s) {}
477
478  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t) const { return __t_; }
479
480  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __s_; }
481};
482
483template <class _Tp>
484struct __unary_plus {
485  typedef _Tp __result_type;
486  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return +__x; }
487};
488
489template <class _Tp>
490struct __bit_not {
491  typedef _Tp __result_type;
492  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return ~__x; }
493};
494
495template <class _Tp>
496struct __bit_shift_left {
497  typedef _Tp __result_type;
498  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x << __y; }
499};
500
501template <class _Tp>
502struct __bit_shift_right {
503  typedef _Tp __result_type;
504  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x >> __y; }
505};
506
507template <class _Tp, class _Fp>
508struct __apply_expr {
509private:
510  _Fp __f_;
511
512public:
513  typedef _Tp __result_type;
514
515  _LIBCPP_HIDE_FROM_ABI explicit __apply_expr(_Fp __f) : __f_(__f) {}
516
517  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return __f_(__x); }
518};
519
520template <class _Tp>
521struct __abs_expr {
522  typedef _Tp __result_type;
523  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::abs(__x); }
524};
525
526template <class _Tp>
527struct __acos_expr {
528  typedef _Tp __result_type;
529  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::acos(__x); }
530};
531
532template <class _Tp>
533struct __asin_expr {
534  typedef _Tp __result_type;
535  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::asin(__x); }
536};
537
538template <class _Tp>
539struct __atan_expr {
540  typedef _Tp __result_type;
541  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::atan(__x); }
542};
543
544template <class _Tp>
545struct __atan2_expr {
546  typedef _Tp __result_type;
547  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const { return std::atan2(__x, __y); }
548};
549
550template <class _Tp>
551struct __cos_expr {
552  typedef _Tp __result_type;
553  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::cos(__x); }
554};
555
556template <class _Tp>
557struct __cosh_expr {
558  typedef _Tp __result_type;
559  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::cosh(__x); }
560};
561
562template <class _Tp>
563struct __exp_expr {
564  typedef _Tp __result_type;
565  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::exp(__x); }
566};
567
568template <class _Tp>
569struct __log_expr {
570  typedef _Tp __result_type;
571  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::log(__x); }
572};
573
574template <class _Tp>
575struct __log10_expr {
576  typedef _Tp __result_type;
577  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::log10(__x); }
578};
579
580template <class _Tp>
581struct __pow_expr {
582  typedef _Tp __result_type;
583  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x, const _Tp& __y) const { return std::pow(__x, __y); }
584};
585
586template <class _Tp>
587struct __sin_expr {
588  typedef _Tp __result_type;
589  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::sin(__x); }
590};
591
592template <class _Tp>
593struct __sinh_expr {
594  typedef _Tp __result_type;
595  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::sinh(__x); }
596};
597
598template <class _Tp>
599struct __sqrt_expr {
600  typedef _Tp __result_type;
601  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::sqrt(__x); }
602};
603
604template <class _Tp>
605struct __tan_expr {
606  typedef _Tp __result_type;
607  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::tan(__x); }
608};
609
610template <class _Tp>
611struct __tanh_expr {
612  typedef _Tp __result_type;
613  _LIBCPP_HIDE_FROM_ABI _Tp operator()(const _Tp& __x) const { return std::tanh(__x); }
614};
615
616template <class _ValExpr>
617class __slice_expr {
618  typedef __libcpp_remove_reference_t<_ValExpr> _RmExpr;
619
620public:
621  typedef typename _RmExpr::value_type value_type;
622  typedef value_type __result_type;
623
624private:
625  _ValExpr __expr_;
626  size_t __start_;
627  size_t __size_;
628  size_t __stride_;
629
630  _LIBCPP_HIDE_FROM_ABI __slice_expr(const slice& __sl, const _RmExpr& __e)
631      : __expr_(__e), __start_(__sl.start()), __size_(__sl.size()), __stride_(__sl.stride()) {}
632
633public:
634  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __expr_[__start_ + __i * __stride_]; }
635
636  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __size_; }
637
638  template <class>
639  friend class __val_expr;
640  template <class>
641  friend class _LIBCPP_TEMPLATE_VIS valarray;
642};
643
644template <class _ValExpr>
645class __mask_expr;
646
647template <class _ValExpr>
648class __indirect_expr;
649
650template <class _ValExpr>
651class __shift_expr {
652  typedef __libcpp_remove_reference_t<_ValExpr> _RmExpr;
653
654public:
655  typedef typename _RmExpr::value_type value_type;
656  typedef value_type __result_type;
657
658private:
659  _ValExpr __expr_;
660  size_t __size_;
661  ptrdiff_t __ul_;
662  ptrdiff_t __sn_;
663  ptrdiff_t __n_;
664  static const ptrdiff_t _Np = static_cast<ptrdiff_t>(sizeof(ptrdiff_t) * __CHAR_BIT__ - 1);
665
666  _LIBCPP_HIDE_FROM_ABI __shift_expr(int __n, const _RmExpr& __e) : __expr_(__e), __size_(__e.size()), __n_(__n) {
667    ptrdiff_t __neg_n = static_cast<ptrdiff_t>(__n_ >> _Np);
668    __sn_             = __neg_n | static_cast<ptrdiff_t>(static_cast<size_t>(-__n_) >> _Np);
669    __ul_             = ((__size_ - __n_) & ~__neg_n) | ((__n_ + 1) & __neg_n);
670  }
671
672public:
673  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __j) const {
674    ptrdiff_t __i = static_cast<ptrdiff_t>(__j);
675    ptrdiff_t __m = (__sn_ * __i - __ul_) >> _Np;
676    return (__expr_[(__i + __n_) & __m] & __m) | (value_type() & ~__m);
677  }
678
679  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __size_; }
680
681  template <class>
682  friend class __val_expr;
683};
684
685template <class _ValExpr>
686class __cshift_expr {
687  typedef __libcpp_remove_reference_t<_ValExpr> _RmExpr;
688
689public:
690  typedef typename _RmExpr::value_type value_type;
691  typedef value_type __result_type;
692
693private:
694  _ValExpr __expr_;
695  size_t __size_;
696  size_t __m_;
697  size_t __o1_;
698  size_t __o2_;
699
700  _LIBCPP_HIDE_FROM_ABI __cshift_expr(int __n, const _RmExpr& __e) : __expr_(__e), __size_(__e.size()) {
701    __n %= static_cast<int>(__size_);
702    if (__n >= 0) {
703      __m_  = __size_ - __n;
704      __o1_ = __n;
705      __o2_ = __n - __size_;
706    } else {
707      __m_  = -__n;
708      __o1_ = __n + __size_;
709      __o2_ = __n;
710    }
711  }
712
713public:
714  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const {
715    if (__i < __m_)
716      return __expr_[__i + __o1_];
717    return __expr_[__i + __o2_];
718  }
719
720  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __size_; }
721
722  template <class>
723  friend class __val_expr;
724};
725
726template <class _ValExpr>
727class __val_expr;
728
729template <class _ValExpr>
730struct __is_val_expr : false_type {};
731
732template <class _ValExpr>
733struct __is_val_expr<__val_expr<_ValExpr> > : true_type {};
734
735template <class _Tp>
736struct __is_val_expr<valarray<_Tp> > : true_type {};
737
738template <class _Tp>
739struct __is_val_expr<slice_array<_Tp> > : true_type {};
740
741template <class _Tp>
742struct __is_val_expr<gslice_array<_Tp> > : true_type {};
743
744template <class _Tp>
745struct __is_val_expr<mask_array<_Tp> > : true_type {};
746
747template <class _Tp>
748struct __is_val_expr<indirect_array<_Tp> > : true_type {};
749
750// The functions using a __val_expr access the elements by their index.
751// valarray and the libc++ lazy proxies have an operator[]. The
752// Standard proxy array's don't have this operator, instead they have a
753// implementation specific accessor
754//   __get(size_t)
755//
756// The functions use the non-member function
757//   __get(__val_expr, size_t)
758//
759// If the __val_expr is a specialization of __val_expr_use_member_functions it
760// uses the __val_expr's member function
761//   __get(size_t)
762// else it uses the __val_expr's member function
763//   operator[](size_t)
764template <class _ValExpr>
765struct __val_expr_use_member_functions;
766
767template <class>
768struct __val_expr_use_member_functions : false_type {};
769
770template <class _Tp>
771struct __val_expr_use_member_functions<slice_array<_Tp> > : true_type {};
772
773template <class _Tp>
774struct __val_expr_use_member_functions<gslice_array<_Tp> > : true_type {};
775
776template <class _Tp>
777struct __val_expr_use_member_functions<mask_array<_Tp> > : true_type {};
778
779template <class _Tp>
780struct __val_expr_use_member_functions<indirect_array<_Tp> > : true_type {};
781
782template <class _Tp>
783class _LIBCPP_TEMPLATE_VIS valarray {
784public:
785  typedef _Tp value_type;
786  typedef _Tp __result_type;
787
788private:
789  value_type* __begin_;
790  value_type* __end_;
791
792public:
793  // construct/destroy:
794  _LIBCPP_HIDE_FROM_ABI valarray() : __begin_(nullptr), __end_(nullptr) {}
795  inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 explicit valarray(size_t __n);
796  _LIBCPP_HIDE_FROM_ABI valarray(const value_type& __x, size_t __n);
797  valarray(const value_type* __p, size_t __n);
798  valarray(const valarray& __v);
799#  ifndef _LIBCPP_CXX03_LANG
800  _LIBCPP_HIDE_FROM_ABI valarray(valarray&& __v) _NOEXCEPT;
801  valarray(initializer_list<value_type> __il);
802#  endif // _LIBCPP_CXX03_LANG
803  valarray(const slice_array<value_type>& __sa);
804  valarray(const gslice_array<value_type>& __ga);
805  valarray(const mask_array<value_type>& __ma);
806  valarray(const indirect_array<value_type>& __ia);
807  inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1 ~valarray();
808
809  // assignment:
810  valarray& operator=(const valarray& __v);
811#  ifndef _LIBCPP_CXX03_LANG
812  _LIBCPP_HIDE_FROM_ABI valarray& operator=(valarray&& __v) _NOEXCEPT;
813  _LIBCPP_HIDE_FROM_ABI valarray& operator=(initializer_list<value_type>);
814#  endif // _LIBCPP_CXX03_LANG
815  _LIBCPP_HIDE_FROM_ABI valarray& operator=(const value_type& __x);
816  _LIBCPP_HIDE_FROM_ABI valarray& operator=(const slice_array<value_type>& __sa);
817  _LIBCPP_HIDE_FROM_ABI valarray& operator=(const gslice_array<value_type>& __ga);
818  _LIBCPP_HIDE_FROM_ABI valarray& operator=(const mask_array<value_type>& __ma);
819  _LIBCPP_HIDE_FROM_ABI valarray& operator=(const indirect_array<value_type>& __ia);
820  template <class _ValExpr>
821  _LIBCPP_HIDE_FROM_ABI valarray& operator=(const __val_expr<_ValExpr>& __v);
822
823  // element access:
824  _LIBCPP_HIDE_FROM_ABI const value_type& operator[](size_t __i) const {
825    _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__i < size(), "valarray::operator[] index out of bounds");
826    return __begin_[__i];
827  }
828
829  _LIBCPP_HIDE_FROM_ABI value_type& operator[](size_t __i) {
830    _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__i < size(), "valarray::operator[] index out of bounds");
831    return __begin_[__i];
832  }
833
834  // subset operations:
835  _LIBCPP_HIDE_FROM_ABI __val_expr<__slice_expr<const valarray&> > operator[](slice __s) const;
836  _LIBCPP_HIDE_FROM_ABI slice_array<value_type> operator[](slice __s);
837  _LIBCPP_HIDE_FROM_ABI __val_expr<__indirect_expr<const valarray&> > operator[](const gslice& __gs) const;
838  _LIBCPP_HIDE_FROM_ABI gslice_array<value_type> operator[](const gslice& __gs);
839#  ifndef _LIBCPP_CXX03_LANG
840  _LIBCPP_HIDE_FROM_ABI __val_expr<__indirect_expr<const valarray&> > operator[](gslice&& __gs) const;
841  _LIBCPP_HIDE_FROM_ABI gslice_array<value_type> operator[](gslice&& __gs);
842#  endif // _LIBCPP_CXX03_LANG
843  _LIBCPP_HIDE_FROM_ABI __val_expr<__mask_expr<const valarray&> > operator[](const valarray<bool>& __vb) const;
844  _LIBCPP_HIDE_FROM_ABI mask_array<value_type> operator[](const valarray<bool>& __vb);
845#  ifndef _LIBCPP_CXX03_LANG
846  _LIBCPP_HIDE_FROM_ABI __val_expr<__mask_expr<const valarray&> > operator[](valarray<bool>&& __vb) const;
847  _LIBCPP_HIDE_FROM_ABI mask_array<value_type> operator[](valarray<bool>&& __vb);
848#  endif // _LIBCPP_CXX03_LANG
849  _LIBCPP_HIDE_FROM_ABI __val_expr<__indirect_expr<const valarray&> > operator[](const valarray<size_t>& __vs) const;
850  _LIBCPP_HIDE_FROM_ABI indirect_array<value_type> operator[](const valarray<size_t>& __vs);
851#  ifndef _LIBCPP_CXX03_LANG
852  _LIBCPP_HIDE_FROM_ABI __val_expr<__indirect_expr<const valarray&> > operator[](valarray<size_t>&& __vs) const;
853  _LIBCPP_HIDE_FROM_ABI indirect_array<value_type> operator[](valarray<size_t>&& __vs);
854#  endif // _LIBCPP_CXX03_LANG
855
856  // unary operators:
857  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__unary_plus<_Tp>, const valarray&> > operator+() const;
858  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<negate<_Tp>, const valarray&> > operator-() const;
859  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__bit_not<_Tp>, const valarray&> > operator~() const;
860  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<logical_not<_Tp>, const valarray&> > operator!() const;
861
862  // computed assignment:
863  _LIBCPP_HIDE_FROM_ABI valarray& operator*=(const value_type& __x);
864  _LIBCPP_HIDE_FROM_ABI valarray& operator/=(const value_type& __x);
865  _LIBCPP_HIDE_FROM_ABI valarray& operator%=(const value_type& __x);
866  _LIBCPP_HIDE_FROM_ABI valarray& operator+=(const value_type& __x);
867  _LIBCPP_HIDE_FROM_ABI valarray& operator-=(const value_type& __x);
868  _LIBCPP_HIDE_FROM_ABI valarray& operator^=(const value_type& __x);
869  _LIBCPP_HIDE_FROM_ABI valarray& operator&=(const value_type& __x);
870  _LIBCPP_HIDE_FROM_ABI valarray& operator|=(const value_type& __x);
871  _LIBCPP_HIDE_FROM_ABI valarray& operator<<=(const value_type& __x);
872  _LIBCPP_HIDE_FROM_ABI valarray& operator>>=(const value_type& __x);
873
874  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
875  _LIBCPP_HIDE_FROM_ABI valarray& operator*=(const _Expr& __v);
876
877  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
878  _LIBCPP_HIDE_FROM_ABI valarray& operator/=(const _Expr& __v);
879
880  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
881  _LIBCPP_HIDE_FROM_ABI valarray& operator%=(const _Expr& __v);
882
883  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
884  _LIBCPP_HIDE_FROM_ABI valarray& operator+=(const _Expr& __v);
885
886  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
887  _LIBCPP_HIDE_FROM_ABI valarray& operator-=(const _Expr& __v);
888
889  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
890  _LIBCPP_HIDE_FROM_ABI valarray& operator^=(const _Expr& __v);
891
892  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
893  _LIBCPP_HIDE_FROM_ABI valarray& operator|=(const _Expr& __v);
894
895  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
896  _LIBCPP_HIDE_FROM_ABI valarray& operator&=(const _Expr& __v);
897
898  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
899  _LIBCPP_HIDE_FROM_ABI valarray& operator<<=(const _Expr& __v);
900
901  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
902  _LIBCPP_HIDE_FROM_ABI valarray& operator>>=(const _Expr& __v);
903
904  // member functions:
905  _LIBCPP_HIDE_FROM_ABI void swap(valarray& __v) _NOEXCEPT;
906
907  _LIBCPP_HIDE_FROM_ABI size_t size() const { return static_cast<size_t>(__end_ - __begin_); }
908
909  _LIBCPP_HIDE_FROM_ABI value_type sum() const;
910  _LIBCPP_HIDE_FROM_ABI value_type min() const;
911  _LIBCPP_HIDE_FROM_ABI value_type max() const;
912
913  valarray shift(int __i) const;
914  valarray cshift(int __i) const;
915  valarray apply(value_type __f(value_type)) const;
916  valarray apply(value_type __f(const value_type&)) const;
917  void resize(size_t __n, value_type __x = value_type());
918
919private:
920  template <class>
921  friend class _LIBCPP_TEMPLATE_VIS valarray;
922  template <class>
923  friend class _LIBCPP_TEMPLATE_VIS slice_array;
924  template <class>
925  friend class _LIBCPP_TEMPLATE_VIS gslice_array;
926  template <class>
927  friend class _LIBCPP_TEMPLATE_VIS mask_array;
928  template <class>
929  friend class __mask_expr;
930  template <class>
931  friend class _LIBCPP_TEMPLATE_VIS indirect_array;
932  template <class>
933  friend class __indirect_expr;
934  template <class>
935  friend class __val_expr;
936
937  template <class _Up>
938  friend _Up* begin(valarray<_Up>& __v);
939
940  template <class _Up>
941  friend const _Up* begin(const valarray<_Up>& __v);
942
943  template <class _Up>
944  friend _Up* end(valarray<_Up>& __v);
945
946  template <class _Up>
947  friend const _Up* end(const valarray<_Up>& __v);
948
949  _LIBCPP_HIDE_FROM_ABI void __clear(size_t __capacity);
950  valarray& __assign_range(const value_type* __f, const value_type* __l);
951};
952
953#  if _LIBCPP_STD_VER >= 17
954template <class _Tp, size_t _Size>
955valarray(const _Tp (&)[_Size], size_t) -> valarray<_Tp>;
956#  endif
957
958template <class _Expr,
959          __enable_if_t<__is_val_expr<_Expr>::value && __val_expr_use_member_functions<_Expr>::value, int> = 0>
960_LIBCPP_HIDE_FROM_ABI typename _Expr::value_type __get(const _Expr& __v, size_t __i) {
961  return __v.__get(__i);
962}
963
964template <class _Expr,
965          __enable_if_t<__is_val_expr<_Expr>::value && !__val_expr_use_member_functions<_Expr>::value, int> = 0>
966_LIBCPP_HIDE_FROM_ABI typename _Expr::value_type __get(const _Expr& __v, size_t __i) {
967  return __v[__i];
968}
969
970extern template _LIBCPP_EXPORTED_FROM_ABI void valarray<size_t>::resize(size_t, size_t);
971
972template <class _Op, class _Tp>
973struct _UnaryOp<_Op, valarray<_Tp> > {
974  typedef typename _Op::__result_type __result_type;
975  using value_type = __decay_t<__result_type>;
976
977  _Op __op_;
978  const valarray<_Tp>& __a0_;
979
980  _LIBCPP_HIDE_FROM_ABI _UnaryOp(const _Op& __op, const valarray<_Tp>& __a0) : __op_(__op), __a0_(__a0) {}
981
982  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __op_(__a0_[__i]); }
983
984  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __a0_.size(); }
985};
986
987template <class _Op, class _Tp, class _A1>
988struct _BinaryOp<_Op, valarray<_Tp>, _A1> {
989  typedef typename _Op::__result_type __result_type;
990  using value_type = __decay_t<__result_type>;
991
992  _Op __op_;
993  const valarray<_Tp>& __a0_;
994  _A1 __a1_;
995
996  _LIBCPP_HIDE_FROM_ABI _BinaryOp(const _Op& __op, const valarray<_Tp>& __a0, const _A1& __a1)
997      : __op_(__op), __a0_(__a0), __a1_(__a1) {}
998
999  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __op_(__a0_[__i], __a1_[__i]); }
1000
1001  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __a0_.size(); }
1002};
1003
1004template <class _Op, class _A0, class _Tp>
1005struct _BinaryOp<_Op, _A0, valarray<_Tp> > {
1006  typedef typename _Op::__result_type __result_type;
1007  using value_type = __decay_t<__result_type>;
1008
1009  _Op __op_;
1010  _A0 __a0_;
1011  const valarray<_Tp>& __a1_;
1012
1013  _LIBCPP_HIDE_FROM_ABI _BinaryOp(const _Op& __op, const _A0& __a0, const valarray<_Tp>& __a1)
1014      : __op_(__op), __a0_(__a0), __a1_(__a1) {}
1015
1016  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __op_(__a0_[__i], __a1_[__i]); }
1017
1018  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __a0_.size(); }
1019};
1020
1021template <class _Op, class _Tp>
1022struct _BinaryOp<_Op, valarray<_Tp>, valarray<_Tp> > {
1023  typedef typename _Op::__result_type __result_type;
1024  using value_type = __decay_t<__result_type>;
1025
1026  _Op __op_;
1027  const valarray<_Tp>& __a0_;
1028  const valarray<_Tp>& __a1_;
1029
1030  _LIBCPP_HIDE_FROM_ABI _BinaryOp(const _Op& __op, const valarray<_Tp>& __a0, const valarray<_Tp>& __a1)
1031      : __op_(__op), __a0_(__a0), __a1_(__a1) {}
1032
1033  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __op_(__a0_[__i], __a1_[__i]); }
1034
1035  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __a0_.size(); }
1036};
1037
1038// slice_array
1039
1040template <class _Tp>
1041class _LIBCPP_TEMPLATE_VIS slice_array {
1042public:
1043  typedef _Tp value_type;
1044
1045private:
1046  value_type* __vp_;
1047  size_t __size_;
1048  size_t __stride_;
1049
1050public:
1051  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1052  void _LIBCPP_HIDE_FROM_ABI operator=(const _Expr& __v) const;
1053
1054  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1055  void _LIBCPP_HIDE_FROM_ABI operator*=(const _Expr& __v) const;
1056
1057  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1058  void _LIBCPP_HIDE_FROM_ABI operator/=(const _Expr& __v) const;
1059
1060  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1061  void _LIBCPP_HIDE_FROM_ABI operator%=(const _Expr& __v) const;
1062
1063  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1064  void _LIBCPP_HIDE_FROM_ABI operator+=(const _Expr& __v) const;
1065
1066  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1067  void _LIBCPP_HIDE_FROM_ABI operator-=(const _Expr& __v) const;
1068
1069  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1070  void _LIBCPP_HIDE_FROM_ABI operator^=(const _Expr& __v) const;
1071
1072  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1073  void _LIBCPP_HIDE_FROM_ABI operator&=(const _Expr& __v) const;
1074
1075  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1076  void _LIBCPP_HIDE_FROM_ABI operator|=(const _Expr& __v) const;
1077
1078  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1079  void _LIBCPP_HIDE_FROM_ABI operator<<=(const _Expr& __v) const;
1080
1081  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1082  void _LIBCPP_HIDE_FROM_ABI operator>>=(const _Expr& __v) const;
1083
1084  slice_array(slice_array const&) = default;
1085
1086  _LIBCPP_HIDE_FROM_ABI const slice_array& operator=(const slice_array& __sa) const;
1087
1088  _LIBCPP_HIDE_FROM_ABI void operator=(const value_type& __x) const;
1089
1090  _LIBCPP_HIDE_FROM_ABI void operator=(const valarray<value_type>& __va) const;
1091
1092  // Behaves like __val_expr::operator[], which returns by value.
1093  _LIBCPP_HIDE_FROM_ABI value_type __get(size_t __i) const {
1094    _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__i < __size_, "slice_array.__get() index out of bounds");
1095    return __vp_[__i * __stride_];
1096  }
1097
1098private:
1099  _LIBCPP_HIDE_FROM_ABI slice_array(const slice& __sl, const valarray<value_type>& __v)
1100      : __vp_(const_cast<value_type*>(__v.__begin_ + __sl.start())), __size_(__sl.size()), __stride_(__sl.stride()) {}
1101
1102  template <class>
1103  friend class valarray;
1104};
1105
1106template <class _Tp>
1107inline const slice_array<_Tp>& slice_array<_Tp>::operator=(const slice_array& __sa) const {
1108  value_type* __t       = __vp_;
1109  const value_type* __s = __sa.__vp_;
1110  for (size_t __n = __size_; __n; --__n, __t += __stride_, __s += __sa.__stride_)
1111    *__t = *__s;
1112  return *this;
1113}
1114
1115template <class _Tp>
1116template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1117inline void slice_array<_Tp>::operator=(const _Expr& __v) const {
1118  value_type* __t = __vp_;
1119  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1120    *__t = __v[__i];
1121}
1122
1123template <class _Tp>
1124inline void slice_array<_Tp>::operator=(const valarray<value_type>& __va) const {
1125  value_type* __t = __vp_;
1126  for (size_t __i = 0; __i < __va.size(); ++__i, __t += __stride_)
1127    *__t = __va[__i];
1128}
1129
1130template <class _Tp>
1131template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1132inline void slice_array<_Tp>::operator*=(const _Expr& __v) const {
1133  value_type* __t = __vp_;
1134  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1135    *__t *= __v[__i];
1136}
1137
1138template <class _Tp>
1139template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1140inline void slice_array<_Tp>::operator/=(const _Expr& __v) const {
1141  value_type* __t = __vp_;
1142  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1143    *__t /= __v[__i];
1144}
1145
1146template <class _Tp>
1147template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1148inline void slice_array<_Tp>::operator%=(const _Expr& __v) const {
1149  value_type* __t = __vp_;
1150  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1151    *__t %= __v[__i];
1152}
1153
1154template <class _Tp>
1155template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1156inline void slice_array<_Tp>::operator+=(const _Expr& __v) const {
1157  value_type* __t = __vp_;
1158  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1159    *__t += __v[__i];
1160}
1161
1162template <class _Tp>
1163template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1164inline void slice_array<_Tp>::operator-=(const _Expr& __v) const {
1165  value_type* __t = __vp_;
1166  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1167    *__t -= __v[__i];
1168}
1169
1170template <class _Tp>
1171template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1172inline void slice_array<_Tp>::operator^=(const _Expr& __v) const {
1173  value_type* __t = __vp_;
1174  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1175    *__t ^= __v[__i];
1176}
1177
1178template <class _Tp>
1179template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1180inline void slice_array<_Tp>::operator&=(const _Expr& __v) const {
1181  value_type* __t = __vp_;
1182  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1183    *__t &= __v[__i];
1184}
1185
1186template <class _Tp>
1187template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1188inline void slice_array<_Tp>::operator|=(const _Expr& __v) const {
1189  value_type* __t = __vp_;
1190  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1191    *__t |= __v[__i];
1192}
1193
1194template <class _Tp>
1195template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1196inline void slice_array<_Tp>::operator<<=(const _Expr& __v) const {
1197  value_type* __t = __vp_;
1198  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1199    *__t <<= __v[__i];
1200}
1201
1202template <class _Tp>
1203template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1204inline void slice_array<_Tp>::operator>>=(const _Expr& __v) const {
1205  value_type* __t = __vp_;
1206  for (size_t __i = 0; __i < __size_; ++__i, __t += __stride_)
1207    *__t >>= __v[__i];
1208}
1209
1210template <class _Tp>
1211inline void slice_array<_Tp>::operator=(const value_type& __x) const {
1212  value_type* __t = __vp_;
1213  for (size_t __n = __size_; __n; --__n, __t += __stride_)
1214    *__t = __x;
1215}
1216
1217// gslice
1218
1219class _LIBCPP_EXPORTED_FROM_ABI gslice {
1220  valarray<size_t> __size_;
1221  valarray<size_t> __stride_;
1222  valarray<size_t> __1d_;
1223
1224public:
1225  _LIBCPP_HIDE_FROM_ABI gslice() {}
1226
1227  _LIBCPP_HIDE_FROM_ABI gslice(size_t __start, const valarray<size_t>& __size, const valarray<size_t>& __stride)
1228      : __size_(__size), __stride_(__stride) {
1229    __init(__start);
1230  }
1231
1232#  ifndef _LIBCPP_CXX03_LANG
1233
1234  _LIBCPP_HIDE_FROM_ABI gslice(size_t __start, const valarray<size_t>& __size, valarray<size_t>&& __stride)
1235      : __size_(__size), __stride_(std::move(__stride)) {
1236    __init(__start);
1237  }
1238
1239  _LIBCPP_HIDE_FROM_ABI gslice(size_t __start, valarray<size_t>&& __size, const valarray<size_t>& __stride)
1240      : __size_(std::move(__size)), __stride_(__stride) {
1241    __init(__start);
1242  }
1243
1244  _LIBCPP_HIDE_FROM_ABI gslice(size_t __start, valarray<size_t>&& __size, valarray<size_t>&& __stride)
1245      : __size_(std::move(__size)), __stride_(std::move(__stride)) {
1246    __init(__start);
1247  }
1248
1249#  endif // _LIBCPP_CXX03_LANG
1250
1251  _LIBCPP_HIDE_FROM_ABI size_t start() const { return __1d_.size() ? __1d_[0] : 0; }
1252
1253  _LIBCPP_HIDE_FROM_ABI valarray<size_t> size() const { return __size_; }
1254
1255  _LIBCPP_HIDE_FROM_ABI valarray<size_t> stride() const { return __stride_; }
1256
1257private:
1258  void __init(size_t __start);
1259
1260  template <class>
1261  friend class gslice_array;
1262  template <class>
1263  friend class valarray;
1264  template <class>
1265  friend class __val_expr;
1266};
1267
1268// gslice_array
1269
1270template <class _Tp>
1271class _LIBCPP_TEMPLATE_VIS gslice_array {
1272public:
1273  typedef _Tp value_type;
1274
1275private:
1276  value_type* __vp_;
1277  valarray<size_t> __1d_;
1278
1279public:
1280  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1281  void _LIBCPP_HIDE_FROM_ABI operator=(const _Expr& __v) const;
1282
1283  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1284  void _LIBCPP_HIDE_FROM_ABI operator*=(const _Expr& __v) const;
1285
1286  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1287  void _LIBCPP_HIDE_FROM_ABI operator/=(const _Expr& __v) const;
1288
1289  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1290  void _LIBCPP_HIDE_FROM_ABI operator%=(const _Expr& __v) const;
1291
1292  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1293  void _LIBCPP_HIDE_FROM_ABI operator+=(const _Expr& __v) const;
1294
1295  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1296  void _LIBCPP_HIDE_FROM_ABI operator-=(const _Expr& __v) const;
1297
1298  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1299  void _LIBCPP_HIDE_FROM_ABI operator^=(const _Expr& __v) const;
1300
1301  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1302  void _LIBCPP_HIDE_FROM_ABI operator&=(const _Expr& __v) const;
1303
1304  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1305  void _LIBCPP_HIDE_FROM_ABI operator|=(const _Expr& __v) const;
1306
1307  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1308  void _LIBCPP_HIDE_FROM_ABI operator<<=(const _Expr& __v) const;
1309
1310  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1311  void _LIBCPP_HIDE_FROM_ABI operator>>=(const _Expr& __v) const;
1312
1313  _LIBCPP_HIDE_FROM_ABI const gslice_array& operator=(const gslice_array& __ga) const;
1314
1315  _LIBCPP_HIDE_FROM_ABI void operator=(const value_type& __x) const;
1316
1317  gslice_array(const gslice_array&) = default;
1318
1319  // Behaves like __val_expr::operator[], which returns by value.
1320  _LIBCPP_HIDE_FROM_ABI value_type __get(size_t __i) const {
1321    _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__i < __1d_.size(), "gslice_array.__get() index out of bounds");
1322    return __vp_[__1d_[__i]];
1323  }
1324
1325private:
1326  gslice_array(const gslice& __gs, const valarray<value_type>& __v)
1327      : __vp_(const_cast<value_type*>(__v.__begin_)), __1d_(__gs.__1d_) {}
1328
1329#  ifndef _LIBCPP_CXX03_LANG
1330  gslice_array(gslice&& __gs, const valarray<value_type>& __v)
1331      : __vp_(const_cast<value_type*>(__v.__begin_)), __1d_(std::move(__gs.__1d_)) {}
1332#  endif // _LIBCPP_CXX03_LANG
1333
1334  template <class>
1335  friend class valarray;
1336};
1337
1338template <class _Tp>
1339template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1340inline void gslice_array<_Tp>::operator=(const _Expr& __v) const {
1341  typedef const size_t* _Ip;
1342  size_t __j = 0;
1343  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1344    __vp_[*__i] = __v[__j];
1345}
1346
1347template <class _Tp>
1348template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1349inline void gslice_array<_Tp>::operator*=(const _Expr& __v) const {
1350  typedef const size_t* _Ip;
1351  size_t __j = 0;
1352  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1353    __vp_[*__i] *= __v[__j];
1354}
1355
1356template <class _Tp>
1357template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1358inline void gslice_array<_Tp>::operator/=(const _Expr& __v) const {
1359  typedef const size_t* _Ip;
1360  size_t __j = 0;
1361  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1362    __vp_[*__i] /= __v[__j];
1363}
1364
1365template <class _Tp>
1366template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1367inline void gslice_array<_Tp>::operator%=(const _Expr& __v) const {
1368  typedef const size_t* _Ip;
1369  size_t __j = 0;
1370  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1371    __vp_[*__i] %= __v[__j];
1372}
1373
1374template <class _Tp>
1375template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1376inline void gslice_array<_Tp>::operator+=(const _Expr& __v) const {
1377  typedef const size_t* _Ip;
1378  size_t __j = 0;
1379  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1380    __vp_[*__i] += __v[__j];
1381}
1382
1383template <class _Tp>
1384template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1385inline void gslice_array<_Tp>::operator-=(const _Expr& __v) const {
1386  typedef const size_t* _Ip;
1387  size_t __j = 0;
1388  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1389    __vp_[*__i] -= __v[__j];
1390}
1391
1392template <class _Tp>
1393template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1394inline void gslice_array<_Tp>::operator^=(const _Expr& __v) const {
1395  typedef const size_t* _Ip;
1396  size_t __j = 0;
1397  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1398    __vp_[*__i] ^= __v[__j];
1399}
1400
1401template <class _Tp>
1402template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1403inline void gslice_array<_Tp>::operator&=(const _Expr& __v) const {
1404  typedef const size_t* _Ip;
1405  size_t __j = 0;
1406  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1407    __vp_[*__i] &= __v[__j];
1408}
1409
1410template <class _Tp>
1411template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1412inline void gslice_array<_Tp>::operator|=(const _Expr& __v) const {
1413  typedef const size_t* _Ip;
1414  size_t __j = 0;
1415  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1416    __vp_[*__i] |= __v[__j];
1417}
1418
1419template <class _Tp>
1420template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1421inline void gslice_array<_Tp>::operator<<=(const _Expr& __v) const {
1422  typedef const size_t* _Ip;
1423  size_t __j = 0;
1424  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1425    __vp_[*__i] <<= __v[__j];
1426}
1427
1428template <class _Tp>
1429template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1430inline void gslice_array<_Tp>::operator>>=(const _Expr& __v) const {
1431  typedef const size_t* _Ip;
1432  size_t __j = 0;
1433  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i, ++__j)
1434    __vp_[*__i] >>= __v[__j];
1435}
1436
1437template <class _Tp>
1438inline const gslice_array<_Tp>& gslice_array<_Tp>::operator=(const gslice_array& __ga) const {
1439  typedef const size_t* _Ip;
1440  const value_type* __s = __ga.__vp_;
1441  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_, __j = __ga.__1d_.__begin_; __i != __e; ++__i, ++__j)
1442    __vp_[*__i] = __s[*__j];
1443  return *this;
1444}
1445
1446template <class _Tp>
1447inline void gslice_array<_Tp>::operator=(const value_type& __x) const {
1448  typedef const size_t* _Ip;
1449  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i)
1450    __vp_[*__i] = __x;
1451}
1452
1453// mask_array
1454
1455template <class _Tp>
1456class _LIBCPP_TEMPLATE_VIS mask_array {
1457public:
1458  typedef _Tp value_type;
1459
1460private:
1461  value_type* __vp_;
1462  valarray<size_t> __1d_;
1463
1464public:
1465  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1466  void _LIBCPP_HIDE_FROM_ABI operator=(const _Expr& __v) const;
1467
1468  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1469  void _LIBCPP_HIDE_FROM_ABI operator*=(const _Expr& __v) const;
1470
1471  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1472  void _LIBCPP_HIDE_FROM_ABI operator/=(const _Expr& __v) const;
1473
1474  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1475  void _LIBCPP_HIDE_FROM_ABI operator%=(const _Expr& __v) const;
1476
1477  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1478  void _LIBCPP_HIDE_FROM_ABI operator+=(const _Expr& __v) const;
1479
1480  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1481  void _LIBCPP_HIDE_FROM_ABI operator-=(const _Expr& __v) const;
1482
1483  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1484  void _LIBCPP_HIDE_FROM_ABI operator^=(const _Expr& __v) const;
1485
1486  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1487  void _LIBCPP_HIDE_FROM_ABI operator&=(const _Expr& __v) const;
1488
1489  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1490  void _LIBCPP_HIDE_FROM_ABI operator|=(const _Expr& __v) const;
1491
1492  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1493  void _LIBCPP_HIDE_FROM_ABI operator<<=(const _Expr& __v) const;
1494
1495  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1496  void _LIBCPP_HIDE_FROM_ABI operator>>=(const _Expr& __v) const;
1497
1498  mask_array(const mask_array&) = default;
1499
1500  _LIBCPP_HIDE_FROM_ABI const mask_array& operator=(const mask_array& __ma) const;
1501
1502  _LIBCPP_HIDE_FROM_ABI void operator=(const value_type& __x) const;
1503
1504  // Behaves like __val_expr::operator[], which returns by value.
1505  _LIBCPP_HIDE_FROM_ABI value_type __get(size_t __i) const {
1506    _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__i < __1d_.size(), "mask_array.__get() index out of bounds");
1507    return __vp_[__1d_[__i]];
1508  }
1509
1510private:
1511  _LIBCPP_HIDE_FROM_ABI mask_array(const valarray<bool>& __vb, const valarray<value_type>& __v)
1512      : __vp_(const_cast<value_type*>(__v.__begin_)),
1513        __1d_(static_cast<size_t>(count(__vb.__begin_, __vb.__end_, true))) {
1514    size_t __j = 0;
1515    for (size_t __i = 0; __i < __vb.size(); ++__i)
1516      if (__vb[__i])
1517        __1d_[__j++] = __i;
1518  }
1519
1520  template <class>
1521  friend class valarray;
1522};
1523
1524template <class _Tp>
1525template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1526inline void mask_array<_Tp>::operator=(const _Expr& __v) const {
1527  size_t __n = __1d_.size();
1528  for (size_t __i = 0; __i < __n; ++__i)
1529    __vp_[__1d_[__i]] = __v[__i];
1530}
1531
1532template <class _Tp>
1533template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1534inline void mask_array<_Tp>::operator*=(const _Expr& __v) const {
1535  size_t __n = __1d_.size();
1536  for (size_t __i = 0; __i < __n; ++__i)
1537    __vp_[__1d_[__i]] *= __v[__i];
1538}
1539
1540template <class _Tp>
1541template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1542inline void mask_array<_Tp>::operator/=(const _Expr& __v) const {
1543  size_t __n = __1d_.size();
1544  for (size_t __i = 0; __i < __n; ++__i)
1545    __vp_[__1d_[__i]] /= __v[__i];
1546}
1547
1548template <class _Tp>
1549template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1550inline void mask_array<_Tp>::operator%=(const _Expr& __v) const {
1551  size_t __n = __1d_.size();
1552  for (size_t __i = 0; __i < __n; ++__i)
1553    __vp_[__1d_[__i]] %= __v[__i];
1554}
1555
1556template <class _Tp>
1557template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1558inline void mask_array<_Tp>::operator+=(const _Expr& __v) const {
1559  size_t __n = __1d_.size();
1560  for (size_t __i = 0; __i < __n; ++__i)
1561    __vp_[__1d_[__i]] += __v[__i];
1562}
1563
1564template <class _Tp>
1565template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1566inline void mask_array<_Tp>::operator-=(const _Expr& __v) const {
1567  size_t __n = __1d_.size();
1568  for (size_t __i = 0; __i < __n; ++__i)
1569    __vp_[__1d_[__i]] -= __v[__i];
1570}
1571
1572template <class _Tp>
1573template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1574inline void mask_array<_Tp>::operator^=(const _Expr& __v) const {
1575  size_t __n = __1d_.size();
1576  for (size_t __i = 0; __i < __n; ++__i)
1577    __vp_[__1d_[__i]] ^= __v[__i];
1578}
1579
1580template <class _Tp>
1581template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1582inline void mask_array<_Tp>::operator&=(const _Expr& __v) const {
1583  size_t __n = __1d_.size();
1584  for (size_t __i = 0; __i < __n; ++__i)
1585    __vp_[__1d_[__i]] &= __v[__i];
1586}
1587
1588template <class _Tp>
1589template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1590inline void mask_array<_Tp>::operator|=(const _Expr& __v) const {
1591  size_t __n = __1d_.size();
1592  for (size_t __i = 0; __i < __n; ++__i)
1593    __vp_[__1d_[__i]] |= __v[__i];
1594}
1595
1596template <class _Tp>
1597template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1598inline void mask_array<_Tp>::operator<<=(const _Expr& __v) const {
1599  size_t __n = __1d_.size();
1600  for (size_t __i = 0; __i < __n; ++__i)
1601    __vp_[__1d_[__i]] <<= __v[__i];
1602}
1603
1604template <class _Tp>
1605template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1606inline void mask_array<_Tp>::operator>>=(const _Expr& __v) const {
1607  size_t __n = __1d_.size();
1608  for (size_t __i = 0; __i < __n; ++__i)
1609    __vp_[__1d_[__i]] >>= __v[__i];
1610}
1611
1612template <class _Tp>
1613inline const mask_array<_Tp>& mask_array<_Tp>::operator=(const mask_array& __ma) const {
1614  size_t __n = __1d_.size();
1615  for (size_t __i = 0; __i < __n; ++__i)
1616    __vp_[__1d_[__i]] = __ma.__vp_[__1d_[__i]];
1617  return *this;
1618}
1619
1620template <class _Tp>
1621inline void mask_array<_Tp>::operator=(const value_type& __x) const {
1622  size_t __n = __1d_.size();
1623  for (size_t __i = 0; __i < __n; ++__i)
1624    __vp_[__1d_[__i]] = __x;
1625}
1626
1627template <class _ValExpr>
1628class __mask_expr {
1629  typedef __libcpp_remove_reference_t<_ValExpr> _RmExpr;
1630
1631public:
1632  typedef typename _RmExpr::value_type value_type;
1633  typedef value_type __result_type;
1634
1635private:
1636  _ValExpr __expr_;
1637  valarray<size_t> __1d_;
1638
1639  _LIBCPP_HIDE_FROM_ABI __mask_expr(const valarray<bool>& __vb, const _RmExpr& __e)
1640      : __expr_(__e), __1d_(static_cast<size_t>(count(__vb.__begin_, __vb.__end_, true))) {
1641    size_t __j = 0;
1642    for (size_t __i = 0; __i < __vb.size(); ++__i)
1643      if (__vb[__i])
1644        __1d_[__j++] = __i;
1645  }
1646
1647public:
1648  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __expr_[__1d_[__i]]; }
1649
1650  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __1d_.size(); }
1651
1652  template <class>
1653  friend class __val_expr;
1654  template <class>
1655  friend class valarray;
1656};
1657
1658// indirect_array
1659
1660template <class _Tp>
1661class _LIBCPP_TEMPLATE_VIS indirect_array {
1662public:
1663  typedef _Tp value_type;
1664
1665private:
1666  value_type* __vp_;
1667  valarray<size_t> __1d_;
1668
1669public:
1670  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1671  void _LIBCPP_HIDE_FROM_ABI operator=(const _Expr& __v) const;
1672
1673  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1674  void _LIBCPP_HIDE_FROM_ABI operator*=(const _Expr& __v) const;
1675
1676  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1677  void _LIBCPP_HIDE_FROM_ABI operator/=(const _Expr& __v) const;
1678
1679  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1680  void _LIBCPP_HIDE_FROM_ABI operator%=(const _Expr& __v) const;
1681
1682  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1683  void _LIBCPP_HIDE_FROM_ABI operator+=(const _Expr& __v) const;
1684
1685  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1686  void _LIBCPP_HIDE_FROM_ABI operator-=(const _Expr& __v) const;
1687
1688  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1689  void _LIBCPP_HIDE_FROM_ABI operator^=(const _Expr& __v) const;
1690
1691  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1692  void _LIBCPP_HIDE_FROM_ABI operator&=(const _Expr& __v) const;
1693
1694  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1695  void _LIBCPP_HIDE_FROM_ABI operator|=(const _Expr& __v) const;
1696
1697  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1698  void _LIBCPP_HIDE_FROM_ABI operator<<=(const _Expr& __v) const;
1699
1700  template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
1701  void _LIBCPP_HIDE_FROM_ABI operator>>=(const _Expr& __v) const;
1702
1703  indirect_array(const indirect_array&) = default;
1704
1705  _LIBCPP_HIDE_FROM_ABI const indirect_array& operator=(const indirect_array& __ia) const;
1706
1707  _LIBCPP_HIDE_FROM_ABI void operator=(const value_type& __x) const;
1708
1709  // Behaves like __val_expr::operator[], which returns by value.
1710  _LIBCPP_HIDE_FROM_ABI value_type __get(size_t __i) const {
1711    _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__i < __1d_.size(), "indirect_array.__get() index out of bounds");
1712    return __vp_[__1d_[__i]];
1713  }
1714
1715private:
1716  _LIBCPP_HIDE_FROM_ABI indirect_array(const valarray<size_t>& __ia, const valarray<value_type>& __v)
1717      : __vp_(const_cast<value_type*>(__v.__begin_)), __1d_(__ia) {}
1718
1719#  ifndef _LIBCPP_CXX03_LANG
1720
1721  _LIBCPP_HIDE_FROM_ABI indirect_array(valarray<size_t>&& __ia, const valarray<value_type>& __v)
1722      : __vp_(const_cast<value_type*>(__v.__begin_)), __1d_(std::move(__ia)) {}
1723
1724#  endif // _LIBCPP_CXX03_LANG
1725
1726  template <class>
1727  friend class valarray;
1728};
1729
1730template <class _Tp>
1731template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1732inline void indirect_array<_Tp>::operator=(const _Expr& __v) const {
1733  size_t __n = __1d_.size();
1734  for (size_t __i = 0; __i < __n; ++__i)
1735    __vp_[__1d_[__i]] = __v[__i];
1736}
1737
1738template <class _Tp>
1739template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1740inline void indirect_array<_Tp>::operator*=(const _Expr& __v) const {
1741  size_t __n = __1d_.size();
1742  for (size_t __i = 0; __i < __n; ++__i)
1743    __vp_[__1d_[__i]] *= __v[__i];
1744}
1745
1746template <class _Tp>
1747template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1748inline void indirect_array<_Tp>::operator/=(const _Expr& __v) const {
1749  size_t __n = __1d_.size();
1750  for (size_t __i = 0; __i < __n; ++__i)
1751    __vp_[__1d_[__i]] /= __v[__i];
1752}
1753
1754template <class _Tp>
1755template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1756inline void indirect_array<_Tp>::operator%=(const _Expr& __v) const {
1757  size_t __n = __1d_.size();
1758  for (size_t __i = 0; __i < __n; ++__i)
1759    __vp_[__1d_[__i]] %= __v[__i];
1760}
1761
1762template <class _Tp>
1763template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1764inline void indirect_array<_Tp>::operator+=(const _Expr& __v) const {
1765  size_t __n = __1d_.size();
1766  for (size_t __i = 0; __i < __n; ++__i)
1767    __vp_[__1d_[__i]] += __v[__i];
1768}
1769
1770template <class _Tp>
1771template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1772inline void indirect_array<_Tp>::operator-=(const _Expr& __v) const {
1773  size_t __n = __1d_.size();
1774  for (size_t __i = 0; __i < __n; ++__i)
1775    __vp_[__1d_[__i]] -= __v[__i];
1776}
1777
1778template <class _Tp>
1779template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1780inline void indirect_array<_Tp>::operator^=(const _Expr& __v) const {
1781  size_t __n = __1d_.size();
1782  for (size_t __i = 0; __i < __n; ++__i)
1783    __vp_[__1d_[__i]] ^= __v[__i];
1784}
1785
1786template <class _Tp>
1787template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1788inline void indirect_array<_Tp>::operator&=(const _Expr& __v) const {
1789  size_t __n = __1d_.size();
1790  for (size_t __i = 0; __i < __n; ++__i)
1791    __vp_[__1d_[__i]] &= __v[__i];
1792}
1793
1794template <class _Tp>
1795template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1796inline void indirect_array<_Tp>::operator|=(const _Expr& __v) const {
1797  size_t __n = __1d_.size();
1798  for (size_t __i = 0; __i < __n; ++__i)
1799    __vp_[__1d_[__i]] |= __v[__i];
1800}
1801
1802template <class _Tp>
1803template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1804inline void indirect_array<_Tp>::operator<<=(const _Expr& __v) const {
1805  size_t __n = __1d_.size();
1806  for (size_t __i = 0; __i < __n; ++__i)
1807    __vp_[__1d_[__i]] <<= __v[__i];
1808}
1809
1810template <class _Tp>
1811template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
1812inline void indirect_array<_Tp>::operator>>=(const _Expr& __v) const {
1813  size_t __n = __1d_.size();
1814  for (size_t __i = 0; __i < __n; ++__i)
1815    __vp_[__1d_[__i]] >>= __v[__i];
1816}
1817
1818template <class _Tp>
1819inline const indirect_array<_Tp>& indirect_array<_Tp>::operator=(const indirect_array& __ia) const {
1820  typedef const size_t* _Ip;
1821  const value_type* __s = __ia.__vp_;
1822  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_, __j = __ia.__1d_.__begin_; __i != __e; ++__i, ++__j)
1823    __vp_[*__i] = __s[*__j];
1824  return *this;
1825}
1826
1827template <class _Tp>
1828inline void indirect_array<_Tp>::operator=(const value_type& __x) const {
1829  typedef const size_t* _Ip;
1830  for (_Ip __i = __1d_.__begin_, __e = __1d_.__end_; __i != __e; ++__i)
1831    __vp_[*__i] = __x;
1832}
1833
1834template <class _ValExpr>
1835class __indirect_expr {
1836  typedef __libcpp_remove_reference_t<_ValExpr> _RmExpr;
1837
1838public:
1839  typedef typename _RmExpr::value_type value_type;
1840  typedef value_type __result_type;
1841
1842private:
1843  _ValExpr __expr_;
1844  valarray<size_t> __1d_;
1845
1846  _LIBCPP_HIDE_FROM_ABI __indirect_expr(const valarray<size_t>& __ia, const _RmExpr& __e) : __expr_(__e), __1d_(__ia) {}
1847
1848#  ifndef _LIBCPP_CXX03_LANG
1849
1850  _LIBCPP_HIDE_FROM_ABI __indirect_expr(valarray<size_t>&& __ia, const _RmExpr& __e)
1851      : __expr_(__e), __1d_(std::move(__ia)) {}
1852
1853#  endif // _LIBCPP_CXX03_LANG
1854
1855public:
1856  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __expr_[__1d_[__i]]; }
1857
1858  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __1d_.size(); }
1859
1860  template <class>
1861  friend class __val_expr;
1862  template <class>
1863  friend class _LIBCPP_TEMPLATE_VIS valarray;
1864};
1865
1866template <class _ValExpr>
1867class __val_expr {
1868  typedef __libcpp_remove_reference_t<_ValExpr> _RmExpr;
1869
1870  _ValExpr __expr_;
1871
1872public:
1873  typedef typename _RmExpr::value_type value_type;
1874  typedef typename _RmExpr::__result_type __result_type;
1875
1876  _LIBCPP_HIDE_FROM_ABI explicit __val_expr(const _RmExpr& __e) : __expr_(__e) {}
1877
1878  _LIBCPP_HIDE_FROM_ABI __result_type operator[](size_t __i) const { return __expr_[__i]; }
1879
1880  _LIBCPP_HIDE_FROM_ABI __val_expr<__slice_expr<_ValExpr> > operator[](slice __s) const {
1881    typedef __slice_expr<_ValExpr> _NewExpr;
1882    return __val_expr< _NewExpr >(_NewExpr(__s, __expr_));
1883  }
1884
1885  _LIBCPP_HIDE_FROM_ABI __val_expr<__indirect_expr<_ValExpr> > operator[](const gslice& __gs) const {
1886    typedef __indirect_expr<_ValExpr> _NewExpr;
1887    return __val_expr<_NewExpr >(_NewExpr(__gs.__1d_, __expr_));
1888  }
1889
1890  _LIBCPP_HIDE_FROM_ABI __val_expr<__mask_expr<_ValExpr> > operator[](const valarray<bool>& __vb) const {
1891    typedef __mask_expr<_ValExpr> _NewExpr;
1892    return __val_expr< _NewExpr >(_NewExpr(__vb, __expr_));
1893  }
1894
1895  _LIBCPP_HIDE_FROM_ABI __val_expr<__indirect_expr<_ValExpr> > operator[](const valarray<size_t>& __vs) const {
1896    typedef __indirect_expr<_ValExpr> _NewExpr;
1897    return __val_expr< _NewExpr >(_NewExpr(__vs, __expr_));
1898  }
1899
1900  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__unary_plus<value_type>, _ValExpr> > operator+() const {
1901    typedef _UnaryOp<__unary_plus<value_type>, _ValExpr> _NewExpr;
1902    return __val_expr<_NewExpr>(_NewExpr(__unary_plus<value_type>(), __expr_));
1903  }
1904
1905  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<negate<value_type>, _ValExpr> > operator-() const {
1906    typedef _UnaryOp<negate<value_type>, _ValExpr> _NewExpr;
1907    return __val_expr<_NewExpr>(_NewExpr(negate<value_type>(), __expr_));
1908  }
1909
1910  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__bit_not<value_type>, _ValExpr> > operator~() const {
1911    typedef _UnaryOp<__bit_not<value_type>, _ValExpr> _NewExpr;
1912    return __val_expr<_NewExpr>(_NewExpr(__bit_not<value_type>(), __expr_));
1913  }
1914
1915  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<logical_not<value_type>, _ValExpr> > operator!() const {
1916    typedef _UnaryOp<logical_not<value_type>, _ValExpr> _NewExpr;
1917    return __val_expr<_NewExpr>(_NewExpr(logical_not<value_type>(), __expr_));
1918  }
1919
1920  operator valarray<__result_type>() const;
1921
1922  _LIBCPP_HIDE_FROM_ABI size_t size() const { return __expr_.size(); }
1923
1924  _LIBCPP_HIDE_FROM_ABI __result_type sum() const {
1925    size_t __n        = __expr_.size();
1926    __result_type __r = __n ? __expr_[0] : __result_type();
1927    for (size_t __i = 1; __i < __n; ++__i)
1928      __r += __expr_[__i];
1929    return __r;
1930  }
1931
1932  _LIBCPP_HIDE_FROM_ABI __result_type min() const {
1933    size_t __n        = size();
1934    __result_type __r = __n ? (*this)[0] : __result_type();
1935    for (size_t __i = 1; __i < __n; ++__i) {
1936      __result_type __x = __expr_[__i];
1937      if (__x < __r)
1938        __r = __x;
1939    }
1940    return __r;
1941  }
1942
1943  _LIBCPP_HIDE_FROM_ABI __result_type max() const {
1944    size_t __n        = size();
1945    __result_type __r = __n ? (*this)[0] : __result_type();
1946    for (size_t __i = 1; __i < __n; ++__i) {
1947      __result_type __x = __expr_[__i];
1948      if (__r < __x)
1949        __r = __x;
1950    }
1951    return __r;
1952  }
1953
1954  _LIBCPP_HIDE_FROM_ABI __val_expr<__shift_expr<_ValExpr> > shift(int __i) const {
1955    return __val_expr<__shift_expr<_ValExpr> >(__shift_expr<_ValExpr>(__i, __expr_));
1956  }
1957
1958  _LIBCPP_HIDE_FROM_ABI __val_expr<__cshift_expr<_ValExpr> > cshift(int __i) const {
1959    return __val_expr<__cshift_expr<_ValExpr> >(__cshift_expr<_ValExpr>(__i, __expr_));
1960  }
1961
1962  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__apply_expr<value_type, value_type (*)(value_type)>, _ValExpr> >
1963  apply(value_type __f(value_type)) const {
1964    typedef __apply_expr<value_type, value_type (*)(value_type)> _Op;
1965    typedef _UnaryOp<_Op, _ValExpr> _NewExpr;
1966    return __val_expr<_NewExpr>(_NewExpr(_Op(__f), __expr_));
1967  }
1968
1969  _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__apply_expr<value_type, value_type (*)(const value_type&)>, _ValExpr> >
1970  apply(value_type __f(const value_type&)) const {
1971    typedef __apply_expr<value_type, value_type (*)(const value_type&)> _Op;
1972    typedef _UnaryOp<_Op, _ValExpr> _NewExpr;
1973    return __val_expr<_NewExpr>(_NewExpr(_Op(__f), __expr_));
1974  }
1975};
1976
1977template <class _ValExpr>
1978__val_expr<_ValExpr>::operator valarray<__val_expr::__result_type>() const {
1979  valarray<__result_type> __r;
1980  size_t __n = __expr_.size();
1981  if (__n) {
1982    __r.__begin_ = __r.__end_ = allocator<__result_type>().allocate(__n);
1983    for (size_t __i = 0; __i != __n; ++__r.__end_, ++__i)
1984      ::new ((void*)__r.__end_) __result_type(__expr_[__i]);
1985  }
1986  return __r;
1987}
1988
1989// valarray
1990
1991template <class _Tp>
1992inline valarray<_Tp>::valarray(size_t __n) : __begin_(nullptr), __end_(nullptr) {
1993  if (__n) {
1994    __begin_ = __end_ = allocator<value_type>().allocate(__n);
1995#  if _LIBCPP_HAS_EXCEPTIONS
1996    try {
1997#  endif // _LIBCPP_HAS_EXCEPTIONS
1998      for (size_t __n_left = __n; __n_left; --__n_left, ++__end_)
1999        ::new ((void*)__end_) value_type();
2000#  if _LIBCPP_HAS_EXCEPTIONS
2001    } catch (...) {
2002      __clear(__n);
2003      throw;
2004    }
2005#  endif // _LIBCPP_HAS_EXCEPTIONS
2006  }
2007}
2008
2009template <class _Tp>
2010inline valarray<_Tp>::valarray(const value_type& __x, size_t __n) : __begin_(nullptr), __end_(nullptr) {
2011  resize(__n, __x);
2012}
2013
2014template <class _Tp>
2015valarray<_Tp>::valarray(const value_type* __p, size_t __n) : __begin_(nullptr), __end_(nullptr) {
2016  if (__n) {
2017    __begin_ = __end_ = allocator<value_type>().allocate(__n);
2018#  if _LIBCPP_HAS_EXCEPTIONS
2019    try {
2020#  endif // _LIBCPP_HAS_EXCEPTIONS
2021      for (size_t __n_left = __n; __n_left; ++__end_, ++__p, --__n_left)
2022        ::new ((void*)__end_) value_type(*__p);
2023#  if _LIBCPP_HAS_EXCEPTIONS
2024    } catch (...) {
2025      __clear(__n);
2026      throw;
2027    }
2028#  endif // _LIBCPP_HAS_EXCEPTIONS
2029  }
2030}
2031
2032template <class _Tp>
2033valarray<_Tp>::valarray(const valarray& __v) : __begin_(nullptr), __end_(nullptr) {
2034  if (__v.size()) {
2035    __begin_ = __end_ = allocator<value_type>().allocate(__v.size());
2036#  if _LIBCPP_HAS_EXCEPTIONS
2037    try {
2038#  endif // _LIBCPP_HAS_EXCEPTIONS
2039      for (value_type* __p = __v.__begin_; __p != __v.__end_; ++__end_, ++__p)
2040        ::new ((void*)__end_) value_type(*__p);
2041#  if _LIBCPP_HAS_EXCEPTIONS
2042    } catch (...) {
2043      __clear(__v.size());
2044      throw;
2045    }
2046#  endif // _LIBCPP_HAS_EXCEPTIONS
2047  }
2048}
2049
2050#  ifndef _LIBCPP_CXX03_LANG
2051
2052template <class _Tp>
2053inline valarray<_Tp>::valarray(valarray&& __v) _NOEXCEPT : __begin_(__v.__begin_), __end_(__v.__end_) {
2054  __v.__begin_ = __v.__end_ = nullptr;
2055}
2056
2057template <class _Tp>
2058valarray<_Tp>::valarray(initializer_list<value_type> __il) : __begin_(nullptr), __end_(nullptr) {
2059  const size_t __n = __il.size();
2060  if (__n) {
2061    __begin_ = __end_ = allocator<value_type>().allocate(__n);
2062#    if _LIBCPP_HAS_EXCEPTIONS
2063    try {
2064#    endif // _LIBCPP_HAS_EXCEPTIONS
2065      size_t __n_left = __n;
2066      for (const value_type* __p = __il.begin(); __n_left; ++__end_, ++__p, --__n_left)
2067        ::new ((void*)__end_) value_type(*__p);
2068#    if _LIBCPP_HAS_EXCEPTIONS
2069    } catch (...) {
2070      __clear(__n);
2071      throw;
2072    }
2073#    endif // _LIBCPP_HAS_EXCEPTIONS
2074  }
2075}
2076
2077#  endif // _LIBCPP_CXX03_LANG
2078
2079template <class _Tp>
2080valarray<_Tp>::valarray(const slice_array<value_type>& __sa) : __begin_(nullptr), __end_(nullptr) {
2081  const size_t __n = __sa.__size_;
2082  if (__n) {
2083    __begin_ = __end_ = allocator<value_type>().allocate(__n);
2084#  if _LIBCPP_HAS_EXCEPTIONS
2085    try {
2086#  endif // _LIBCPP_HAS_EXCEPTIONS
2087      size_t __n_left = __n;
2088      for (const value_type* __p = __sa.__vp_; __n_left; ++__end_, __p += __sa.__stride_, --__n_left)
2089        ::new ((void*)__end_) value_type(*__p);
2090#  if _LIBCPP_HAS_EXCEPTIONS
2091    } catch (...) {
2092      __clear(__n);
2093      throw;
2094    }
2095#  endif // _LIBCPP_HAS_EXCEPTIONS
2096  }
2097}
2098
2099template <class _Tp>
2100valarray<_Tp>::valarray(const gslice_array<value_type>& __ga) : __begin_(nullptr), __end_(nullptr) {
2101  const size_t __n = __ga.__1d_.size();
2102  if (__n) {
2103    __begin_ = __end_ = allocator<value_type>().allocate(__n);
2104#  if _LIBCPP_HAS_EXCEPTIONS
2105    try {
2106#  endif // _LIBCPP_HAS_EXCEPTIONS
2107      typedef const size_t* _Ip;
2108      const value_type* __s = __ga.__vp_;
2109      for (_Ip __i = __ga.__1d_.__begin_, __e = __ga.__1d_.__end_; __i != __e; ++__i, ++__end_)
2110        ::new ((void*)__end_) value_type(__s[*__i]);
2111#  if _LIBCPP_HAS_EXCEPTIONS
2112    } catch (...) {
2113      __clear(__n);
2114      throw;
2115    }
2116#  endif // _LIBCPP_HAS_EXCEPTIONS
2117  }
2118}
2119
2120template <class _Tp>
2121valarray<_Tp>::valarray(const mask_array<value_type>& __ma) : __begin_(nullptr), __end_(nullptr) {
2122  const size_t __n = __ma.__1d_.size();
2123  if (__n) {
2124    __begin_ = __end_ = allocator<value_type>().allocate(__n);
2125#  if _LIBCPP_HAS_EXCEPTIONS
2126    try {
2127#  endif // _LIBCPP_HAS_EXCEPTIONS
2128      typedef const size_t* _Ip;
2129      const value_type* __s = __ma.__vp_;
2130      for (_Ip __i = __ma.__1d_.__begin_, __e = __ma.__1d_.__end_; __i != __e; ++__i, ++__end_)
2131        ::new ((void*)__end_) value_type(__s[*__i]);
2132#  if _LIBCPP_HAS_EXCEPTIONS
2133    } catch (...) {
2134      __clear(__n);
2135      throw;
2136    }
2137#  endif // _LIBCPP_HAS_EXCEPTIONS
2138  }
2139}
2140
2141template <class _Tp>
2142valarray<_Tp>::valarray(const indirect_array<value_type>& __ia) : __begin_(nullptr), __end_(nullptr) {
2143  const size_t __n = __ia.__1d_.size();
2144  if (__n) {
2145    __begin_ = __end_ = allocator<value_type>().allocate(__n);
2146#  if _LIBCPP_HAS_EXCEPTIONS
2147    try {
2148#  endif // _LIBCPP_HAS_EXCEPTIONS
2149      typedef const size_t* _Ip;
2150      const value_type* __s = __ia.__vp_;
2151      for (_Ip __i = __ia.__1d_.__begin_, __e = __ia.__1d_.__end_; __i != __e; ++__i, ++__end_)
2152        ::new ((void*)__end_) value_type(__s[*__i]);
2153#  if _LIBCPP_HAS_EXCEPTIONS
2154    } catch (...) {
2155      __clear(__n);
2156      throw;
2157    }
2158#  endif // _LIBCPP_HAS_EXCEPTIONS
2159  }
2160}
2161
2162template <class _Tp>
2163inline valarray<_Tp>::~valarray() {
2164  __clear(size());
2165}
2166
2167template <class _Tp>
2168valarray<_Tp>& valarray<_Tp>::__assign_range(const value_type* __f, const value_type* __l) {
2169  size_t __n = __l - __f;
2170  if (size() != __n) {
2171    __clear(size());
2172    __begin_ = allocator<value_type>().allocate(__n);
2173    __end_   = __begin_ + __n;
2174    std::uninitialized_copy(__f, __l, __begin_);
2175  } else {
2176    std::copy(__f, __l, __begin_);
2177  }
2178  return *this;
2179}
2180
2181template <class _Tp>
2182valarray<_Tp>& valarray<_Tp>::operator=(const valarray& __v) {
2183  if (this != std::addressof(__v))
2184    return __assign_range(__v.__begin_, __v.__end_);
2185  return *this;
2186}
2187
2188#  ifndef _LIBCPP_CXX03_LANG
2189
2190template <class _Tp>
2191inline valarray<_Tp>& valarray<_Tp>::operator=(valarray&& __v) _NOEXCEPT {
2192  __clear(size());
2193  __begin_     = __v.__begin_;
2194  __end_       = __v.__end_;
2195  __v.__begin_ = nullptr;
2196  __v.__end_   = nullptr;
2197  return *this;
2198}
2199
2200template <class _Tp>
2201inline valarray<_Tp>& valarray<_Tp>::operator=(initializer_list<value_type> __il) {
2202  return __assign_range(__il.begin(), __il.end());
2203}
2204
2205#  endif // _LIBCPP_CXX03_LANG
2206
2207template <class _Tp>
2208inline valarray<_Tp>& valarray<_Tp>::operator=(const value_type& __x) {
2209  std::fill(__begin_, __end_, __x);
2210  return *this;
2211}
2212
2213template <class _Tp>
2214inline valarray<_Tp>& valarray<_Tp>::operator=(const slice_array<value_type>& __sa) {
2215  value_type* __t       = __begin_;
2216  const value_type* __s = __sa.__vp_;
2217  for (size_t __n = __sa.__size_; __n; --__n, __s += __sa.__stride_, ++__t)
2218    *__t = *__s;
2219  return *this;
2220}
2221
2222template <class _Tp>
2223inline valarray<_Tp>& valarray<_Tp>::operator=(const gslice_array<value_type>& __ga) {
2224  typedef const size_t* _Ip;
2225  value_type* __t       = __begin_;
2226  const value_type* __s = __ga.__vp_;
2227  for (_Ip __i = __ga.__1d_.__begin_, __e = __ga.__1d_.__end_; __i != __e; ++__i, ++__t)
2228    *__t = __s[*__i];
2229  return *this;
2230}
2231
2232template <class _Tp>
2233inline valarray<_Tp>& valarray<_Tp>::operator=(const mask_array<value_type>& __ma) {
2234  typedef const size_t* _Ip;
2235  value_type* __t       = __begin_;
2236  const value_type* __s = __ma.__vp_;
2237  for (_Ip __i = __ma.__1d_.__begin_, __e = __ma.__1d_.__end_; __i != __e; ++__i, ++__t)
2238    *__t = __s[*__i];
2239  return *this;
2240}
2241
2242template <class _Tp>
2243inline valarray<_Tp>& valarray<_Tp>::operator=(const indirect_array<value_type>& __ia) {
2244  typedef const size_t* _Ip;
2245  value_type* __t       = __begin_;
2246  const value_type* __s = __ia.__vp_;
2247  for (_Ip __i = __ia.__1d_.__begin_, __e = __ia.__1d_.__end_; __i != __e; ++__i, ++__t)
2248    *__t = __s[*__i];
2249  return *this;
2250}
2251
2252template <class _Tp>
2253template <class _ValExpr>
2254inline valarray<_Tp>& valarray<_Tp>::operator=(const __val_expr<_ValExpr>& __v) {
2255  size_t __n = __v.size();
2256  if (size() != __n)
2257    resize(__n);
2258  value_type* __t = __begin_;
2259  for (size_t __i = 0; __i != __n; ++__t, ++__i)
2260    *__t = __result_type(__v[__i]);
2261  return *this;
2262}
2263
2264template <class _Tp>
2265inline __val_expr<__slice_expr<const valarray<_Tp>&> > valarray<_Tp>::operator[](slice __s) const {
2266  return __val_expr<__slice_expr<const valarray&> >(__slice_expr<const valarray&>(__s, *this));
2267}
2268
2269template <class _Tp>
2270inline slice_array<_Tp> valarray<_Tp>::operator[](slice __s) {
2271  return slice_array<value_type>(__s, *this);
2272}
2273
2274template <class _Tp>
2275inline __val_expr<__indirect_expr<const valarray<_Tp>&> > valarray<_Tp>::operator[](const gslice& __gs) const {
2276  return __val_expr<__indirect_expr<const valarray&> >(__indirect_expr<const valarray&>(__gs.__1d_, *this));
2277}
2278
2279template <class _Tp>
2280inline gslice_array<_Tp> valarray<_Tp>::operator[](const gslice& __gs) {
2281  return gslice_array<value_type>(__gs, *this);
2282}
2283
2284#  ifndef _LIBCPP_CXX03_LANG
2285
2286template <class _Tp>
2287inline __val_expr<__indirect_expr<const valarray<_Tp>&> > valarray<_Tp>::operator[](gslice&& __gs) const {
2288  return __val_expr<__indirect_expr<const valarray&> >(__indirect_expr<const valarray&>(std::move(__gs.__1d_), *this));
2289}
2290
2291template <class _Tp>
2292inline gslice_array<_Tp> valarray<_Tp>::operator[](gslice&& __gs) {
2293  return gslice_array<value_type>(std::move(__gs), *this);
2294}
2295
2296#  endif // _LIBCPP_CXX03_LANG
2297
2298template <class _Tp>
2299inline __val_expr<__mask_expr<const valarray<_Tp>&> > valarray<_Tp>::operator[](const valarray<bool>& __vb) const {
2300  return __val_expr<__mask_expr<const valarray&> >(__mask_expr<const valarray&>(__vb, *this));
2301}
2302
2303template <class _Tp>
2304inline mask_array<_Tp> valarray<_Tp>::operator[](const valarray<bool>& __vb) {
2305  return mask_array<value_type>(__vb, *this);
2306}
2307
2308#  ifndef _LIBCPP_CXX03_LANG
2309
2310template <class _Tp>
2311inline __val_expr<__mask_expr<const valarray<_Tp>&> > valarray<_Tp>::operator[](valarray<bool>&& __vb) const {
2312  return __val_expr<__mask_expr<const valarray&> >(__mask_expr<const valarray&>(std::move(__vb), *this));
2313}
2314
2315template <class _Tp>
2316inline mask_array<_Tp> valarray<_Tp>::operator[](valarray<bool>&& __vb) {
2317  return mask_array<value_type>(std::move(__vb), *this);
2318}
2319
2320#  endif // _LIBCPP_CXX03_LANG
2321
2322template <class _Tp>
2323inline __val_expr<__indirect_expr<const valarray<_Tp>&> >
2324valarray<_Tp>::operator[](const valarray<size_t>& __vs) const {
2325  return __val_expr<__indirect_expr<const valarray&> >(__indirect_expr<const valarray&>(__vs, *this));
2326}
2327
2328template <class _Tp>
2329inline indirect_array<_Tp> valarray<_Tp>::operator[](const valarray<size_t>& __vs) {
2330  return indirect_array<value_type>(__vs, *this);
2331}
2332
2333#  ifndef _LIBCPP_CXX03_LANG
2334
2335template <class _Tp>
2336inline __val_expr<__indirect_expr<const valarray<_Tp>&> > valarray<_Tp>::operator[](valarray<size_t>&& __vs) const {
2337  return __val_expr<__indirect_expr<const valarray&> >(__indirect_expr<const valarray&>(std::move(__vs), *this));
2338}
2339
2340template <class _Tp>
2341inline indirect_array<_Tp> valarray<_Tp>::operator[](valarray<size_t>&& __vs) {
2342  return indirect_array<value_type>(std::move(__vs), *this);
2343}
2344
2345#  endif // _LIBCPP_CXX03_LANG
2346
2347template <class _Tp>
2348inline __val_expr<_UnaryOp<__unary_plus<_Tp>, const valarray<_Tp>&> > valarray<_Tp>::operator+() const {
2349  using _Op = _UnaryOp<__unary_plus<_Tp>, const valarray<_Tp>&>;
2350  return __val_expr<_Op>(_Op(__unary_plus<_Tp>(), *this));
2351}
2352
2353template <class _Tp>
2354inline __val_expr<_UnaryOp<negate<_Tp>, const valarray<_Tp>&> > valarray<_Tp>::operator-() const {
2355  using _Op = _UnaryOp<negate<_Tp>, const valarray<_Tp>&>;
2356  return __val_expr<_Op>(_Op(negate<_Tp>(), *this));
2357}
2358
2359template <class _Tp>
2360inline __val_expr<_UnaryOp<__bit_not<_Tp>, const valarray<_Tp>&> > valarray<_Tp>::operator~() const {
2361  using _Op = _UnaryOp<__bit_not<_Tp>, const valarray<_Tp>&>;
2362  return __val_expr<_Op>(_Op(__bit_not<_Tp>(), *this));
2363}
2364
2365template <class _Tp>
2366inline __val_expr<_UnaryOp<logical_not<_Tp>, const valarray<_Tp>&> > valarray<_Tp>::operator!() const {
2367  using _Op = _UnaryOp<logical_not<_Tp>, const valarray<_Tp>&>;
2368  return __val_expr<_Op>(_Op(logical_not<_Tp>(), *this));
2369}
2370
2371template <class _Tp>
2372inline valarray<_Tp>& valarray<_Tp>::operator*=(const value_type& __x) {
2373  for (value_type* __p = __begin_; __p != __end_; ++__p)
2374    *__p *= __x;
2375  return *this;
2376}
2377
2378template <class _Tp>
2379inline valarray<_Tp>& valarray<_Tp>::operator/=(const value_type& __x) {
2380  for (value_type* __p = __begin_; __p != __end_; ++__p)
2381    *__p /= __x;
2382  return *this;
2383}
2384
2385template <class _Tp>
2386inline valarray<_Tp>& valarray<_Tp>::operator%=(const value_type& __x) {
2387  for (value_type* __p = __begin_; __p != __end_; ++__p)
2388    *__p %= __x;
2389  return *this;
2390}
2391
2392template <class _Tp>
2393inline valarray<_Tp>& valarray<_Tp>::operator+=(const value_type& __x) {
2394  for (value_type* __p = __begin_; __p != __end_; ++__p)
2395    *__p += __x;
2396  return *this;
2397}
2398
2399template <class _Tp>
2400inline valarray<_Tp>& valarray<_Tp>::operator-=(const value_type& __x) {
2401  for (value_type* __p = __begin_; __p != __end_; ++__p)
2402    *__p -= __x;
2403  return *this;
2404}
2405
2406template <class _Tp>
2407inline valarray<_Tp>& valarray<_Tp>::operator^=(const value_type& __x) {
2408  for (value_type* __p = __begin_; __p != __end_; ++__p)
2409    *__p ^= __x;
2410  return *this;
2411}
2412
2413template <class _Tp>
2414inline valarray<_Tp>& valarray<_Tp>::operator&=(const value_type& __x) {
2415  for (value_type* __p = __begin_; __p != __end_; ++__p)
2416    *__p &= __x;
2417  return *this;
2418}
2419
2420template <class _Tp>
2421inline valarray<_Tp>& valarray<_Tp>::operator|=(const value_type& __x) {
2422  for (value_type* __p = __begin_; __p != __end_; ++__p)
2423    *__p |= __x;
2424  return *this;
2425}
2426
2427template <class _Tp>
2428inline valarray<_Tp>& valarray<_Tp>::operator<<=(const value_type& __x) {
2429  for (value_type* __p = __begin_; __p != __end_; ++__p)
2430    *__p <<= __x;
2431  return *this;
2432}
2433
2434template <class _Tp>
2435inline valarray<_Tp>& valarray<_Tp>::operator>>=(const value_type& __x) {
2436  for (value_type* __p = __begin_; __p != __end_; ++__p)
2437    *__p >>= __x;
2438  return *this;
2439}
2440
2441template <class _Tp>
2442template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2443inline valarray<_Tp>& valarray<_Tp>::operator*=(const _Expr& __v) {
2444  size_t __i = 0;
2445  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2446    *__t *= std::__get(__v, __i);
2447  return *this;
2448}
2449
2450template <class _Tp>
2451template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2452inline valarray<_Tp>& valarray<_Tp>::operator/=(const _Expr& __v) {
2453  size_t __i = 0;
2454  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2455    *__t /= std::__get(__v, __i);
2456  return *this;
2457}
2458
2459template <class _Tp>
2460template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2461inline valarray<_Tp>& valarray<_Tp>::operator%=(const _Expr& __v) {
2462  size_t __i = 0;
2463  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2464    *__t %= std::__get(__v, __i);
2465  return *this;
2466}
2467
2468template <class _Tp>
2469template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2470inline valarray<_Tp>& valarray<_Tp>::operator+=(const _Expr& __v) {
2471  size_t __i = 0;
2472  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2473    *__t += std::__get(__v, __i);
2474  return *this;
2475}
2476
2477template <class _Tp>
2478template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2479inline valarray<_Tp>& valarray<_Tp>::operator-=(const _Expr& __v) {
2480  size_t __i = 0;
2481  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2482    *__t -= std::__get(__v, __i);
2483  return *this;
2484}
2485
2486template <class _Tp>
2487template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2488inline valarray<_Tp>& valarray<_Tp>::operator^=(const _Expr& __v) {
2489  size_t __i = 0;
2490  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2491    *__t ^= std::__get(__v, __i);
2492  return *this;
2493}
2494
2495template <class _Tp>
2496template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2497inline valarray<_Tp>& valarray<_Tp>::operator|=(const _Expr& __v) {
2498  size_t __i = 0;
2499  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2500    *__t |= std::__get(__v, __i);
2501  return *this;
2502}
2503
2504template <class _Tp>
2505template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2506inline valarray<_Tp>& valarray<_Tp>::operator&=(const _Expr& __v) {
2507  size_t __i = 0;
2508  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2509    *__t &= std::__get(__v, __i);
2510  return *this;
2511}
2512
2513template <class _Tp>
2514template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2515inline valarray<_Tp>& valarray<_Tp>::operator<<=(const _Expr& __v) {
2516  size_t __i = 0;
2517  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2518    *__t <<= std::__get(__v, __i);
2519  return *this;
2520}
2521
2522template <class _Tp>
2523template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> >
2524inline valarray<_Tp>& valarray<_Tp>::operator>>=(const _Expr& __v) {
2525  size_t __i = 0;
2526  for (value_type* __t = __begin_; __t != __end_; ++__t, ++__i)
2527    *__t >>= std::__get(__v, __i);
2528  return *this;
2529}
2530
2531template <class _Tp>
2532inline void valarray<_Tp>::swap(valarray& __v) _NOEXCEPT {
2533  std::swap(__begin_, __v.__begin_);
2534  std::swap(__end_, __v.__end_);
2535}
2536
2537template <class _Tp>
2538inline _Tp valarray<_Tp>::sum() const {
2539  if (__begin_ == __end_)
2540    return value_type();
2541  const value_type* __p = __begin_;
2542  _Tp __r               = *__p;
2543  for (++__p; __p != __end_; ++__p)
2544    __r += *__p;
2545  return __r;
2546}
2547
2548template <class _Tp>
2549inline _Tp valarray<_Tp>::min() const {
2550  if (__begin_ == __end_)
2551    return value_type();
2552  return *std::min_element(__begin_, __end_);
2553}
2554
2555template <class _Tp>
2556inline _Tp valarray<_Tp>::max() const {
2557  if (__begin_ == __end_)
2558    return value_type();
2559  return *std::max_element(__begin_, __end_);
2560}
2561
2562template <class _Tp>
2563valarray<_Tp> valarray<_Tp>::shift(int __i) const {
2564  valarray<value_type> __r;
2565  size_t __n = size();
2566  if (__n) {
2567    __r.__begin_ = __r.__end_ = allocator<value_type>().allocate(__n);
2568    const value_type* __sb;
2569    value_type* __tb;
2570    value_type* __te;
2571    if (__i >= 0) {
2572      __i  = std::min(__i, static_cast<int>(__n));
2573      __sb = __begin_ + __i;
2574      __tb = __r.__begin_;
2575      __te = __r.__begin_ + (__n - __i);
2576    } else {
2577      __i  = std::min(-__i, static_cast<int>(__n));
2578      __sb = __begin_;
2579      __tb = __r.__begin_ + __i;
2580      __te = __r.__begin_ + __n;
2581    }
2582    for (; __r.__end_ != __tb; ++__r.__end_)
2583      ::new ((void*)__r.__end_) value_type();
2584    for (; __r.__end_ != __te; ++__r.__end_, ++__sb)
2585      ::new ((void*)__r.__end_) value_type(*__sb);
2586    for (__te = __r.__begin_ + __n; __r.__end_ != __te; ++__r.__end_)
2587      ::new ((void*)__r.__end_) value_type();
2588  }
2589  return __r;
2590}
2591
2592template <class _Tp>
2593valarray<_Tp> valarray<_Tp>::cshift(int __i) const {
2594  valarray<value_type> __r;
2595  size_t __n = size();
2596  if (__n) {
2597    __r.__begin_ = __r.__end_ = allocator<value_type>().allocate(__n);
2598    __i %= static_cast<int>(__n);
2599    const value_type* __m = __i >= 0 ? __begin_ + __i : __end_ + __i;
2600    for (const value_type* __s = __m; __s != __end_; ++__r.__end_, ++__s)
2601      ::new ((void*)__r.__end_) value_type(*__s);
2602    for (const value_type* __s = __begin_; __s != __m; ++__r.__end_, ++__s)
2603      ::new ((void*)__r.__end_) value_type(*__s);
2604  }
2605  return __r;
2606}
2607
2608template <class _Tp>
2609valarray<_Tp> valarray<_Tp>::apply(value_type __f(value_type)) const {
2610  valarray<value_type> __r;
2611  size_t __n = size();
2612  if (__n) {
2613    __r.__begin_ = __r.__end_ = allocator<value_type>().allocate(__n);
2614    for (const value_type* __p = __begin_; __n; ++__r.__end_, ++__p, --__n)
2615      ::new ((void*)__r.__end_) value_type(__f(*__p));
2616  }
2617  return __r;
2618}
2619
2620template <class _Tp>
2621valarray<_Tp> valarray<_Tp>::apply(value_type __f(const value_type&)) const {
2622  valarray<value_type> __r;
2623  size_t __n = size();
2624  if (__n) {
2625    __r.__begin_ = __r.__end_ = allocator<value_type>().allocate(__n);
2626    for (const value_type* __p = __begin_; __n; ++__r.__end_, ++__p, --__n)
2627      ::new ((void*)__r.__end_) value_type(__f(*__p));
2628  }
2629  return __r;
2630}
2631
2632template <class _Tp>
2633inline void valarray<_Tp>::__clear(size_t __capacity) {
2634  if (__begin_ != nullptr) {
2635    while (__end_ != __begin_)
2636      (--__end_)->~value_type();
2637    allocator<value_type>().deallocate(__begin_, __capacity);
2638    __begin_ = __end_ = nullptr;
2639  }
2640}
2641
2642template <class _Tp>
2643void valarray<_Tp>::resize(size_t __n, value_type __x) {
2644  __clear(size());
2645  if (__n) {
2646    __begin_ = __end_ = allocator<value_type>().allocate(__n);
2647#  if _LIBCPP_HAS_EXCEPTIONS
2648    try {
2649#  endif // _LIBCPP_HAS_EXCEPTIONS
2650      for (size_t __n_left = __n; __n_left; --__n_left, ++__end_)
2651        ::new ((void*)__end_) value_type(__x);
2652#  if _LIBCPP_HAS_EXCEPTIONS
2653    } catch (...) {
2654      __clear(__n);
2655      throw;
2656    }
2657#  endif // _LIBCPP_HAS_EXCEPTIONS
2658  }
2659}
2660
2661template <class _Tp>
2662inline _LIBCPP_HIDE_FROM_ABI void swap(valarray<_Tp>& __x, valarray<_Tp>& __y) _NOEXCEPT {
2663  __x.swap(__y);
2664}
2665
2666template <class _Expr1,
2667          class _Expr2,
2668          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2669inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<multiplies<typename _Expr1::value_type>, _Expr1, _Expr2> >
2670operator*(const _Expr1& __x, const _Expr2& __y) {
2671  typedef typename _Expr1::value_type value_type;
2672  typedef _BinaryOp<multiplies<value_type>, _Expr1, _Expr2> _Op;
2673  return __val_expr<_Op>(_Op(multiplies<value_type>(), __x, __y));
2674}
2675
2676template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2677inline _LIBCPP_HIDE_FROM_ABI
2678__val_expr<_BinaryOp<multiplies<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2679operator*(const _Expr& __x, const typename _Expr::value_type& __y) {
2680  typedef typename _Expr::value_type value_type;
2681  typedef _BinaryOp<multiplies<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2682  return __val_expr<_Op>(_Op(multiplies<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2683}
2684
2685template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2686inline _LIBCPP_HIDE_FROM_ABI
2687__val_expr<_BinaryOp<multiplies<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2688operator*(const typename _Expr::value_type& __x, const _Expr& __y) {
2689  typedef typename _Expr::value_type value_type;
2690  typedef _BinaryOp<multiplies<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2691  return __val_expr<_Op>(_Op(multiplies<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2692}
2693
2694template <class _Expr1,
2695          class _Expr2,
2696          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2697inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<divides<typename _Expr1::value_type>, _Expr1, _Expr2> >
2698operator/(const _Expr1& __x, const _Expr2& __y) {
2699  typedef typename _Expr1::value_type value_type;
2700  typedef _BinaryOp<divides<value_type>, _Expr1, _Expr2> _Op;
2701  return __val_expr<_Op>(_Op(divides<value_type>(), __x, __y));
2702}
2703
2704template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2705inline _LIBCPP_HIDE_FROM_ABI
2706__val_expr<_BinaryOp<divides<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2707operator/(const _Expr& __x, const typename _Expr::value_type& __y) {
2708  typedef typename _Expr::value_type value_type;
2709  typedef _BinaryOp<divides<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2710  return __val_expr<_Op>(_Op(divides<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2711}
2712
2713template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2714inline _LIBCPP_HIDE_FROM_ABI
2715__val_expr<_BinaryOp<divides<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2716operator/(const typename _Expr::value_type& __x, const _Expr& __y) {
2717  typedef typename _Expr::value_type value_type;
2718  typedef _BinaryOp<divides<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2719  return __val_expr<_Op>(_Op(divides<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2720}
2721
2722template <class _Expr1,
2723          class _Expr2,
2724          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2725inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<modulus<typename _Expr1::value_type>, _Expr1, _Expr2> >
2726operator%(const _Expr1& __x, const _Expr2& __y) {
2727  typedef typename _Expr1::value_type value_type;
2728  typedef _BinaryOp<modulus<value_type>, _Expr1, _Expr2> _Op;
2729  return __val_expr<_Op>(_Op(modulus<value_type>(), __x, __y));
2730}
2731
2732template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2733inline _LIBCPP_HIDE_FROM_ABI
2734__val_expr<_BinaryOp<modulus<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2735operator%(const _Expr& __x, const typename _Expr::value_type& __y) {
2736  typedef typename _Expr::value_type value_type;
2737  typedef _BinaryOp<modulus<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2738  return __val_expr<_Op>(_Op(modulus<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2739}
2740
2741template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2742inline _LIBCPP_HIDE_FROM_ABI
2743__val_expr<_BinaryOp<modulus<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2744operator%(const typename _Expr::value_type& __x, const _Expr& __y) {
2745  typedef typename _Expr::value_type value_type;
2746  typedef _BinaryOp<modulus<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2747  return __val_expr<_Op>(_Op(modulus<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2748}
2749
2750template <class _Expr1,
2751          class _Expr2,
2752          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2753inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<plus<typename _Expr1::value_type>, _Expr1, _Expr2> >
2754operator+(const _Expr1& __x, const _Expr2& __y) {
2755  typedef typename _Expr1::value_type value_type;
2756  typedef _BinaryOp<plus<value_type>, _Expr1, _Expr2> _Op;
2757  return __val_expr<_Op>(_Op(plus<value_type>(), __x, __y));
2758}
2759
2760template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2761inline _LIBCPP_HIDE_FROM_ABI
2762__val_expr<_BinaryOp<plus<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2763operator+(const _Expr& __x, const typename _Expr::value_type& __y) {
2764  typedef typename _Expr::value_type value_type;
2765  typedef _BinaryOp<plus<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2766  return __val_expr<_Op>(_Op(plus<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2767}
2768
2769template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2770inline _LIBCPP_HIDE_FROM_ABI
2771__val_expr<_BinaryOp<plus<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2772operator+(const typename _Expr::value_type& __x, const _Expr& __y) {
2773  typedef typename _Expr::value_type value_type;
2774  typedef _BinaryOp<plus<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2775  return __val_expr<_Op>(_Op(plus<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2776}
2777
2778template <class _Expr1,
2779          class _Expr2,
2780          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2781inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<minus<typename _Expr1::value_type>, _Expr1, _Expr2> >
2782operator-(const _Expr1& __x, const _Expr2& __y) {
2783  typedef typename _Expr1::value_type value_type;
2784  typedef _BinaryOp<minus<value_type>, _Expr1, _Expr2> _Op;
2785  return __val_expr<_Op>(_Op(minus<value_type>(), __x, __y));
2786}
2787
2788template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2789inline _LIBCPP_HIDE_FROM_ABI
2790__val_expr<_BinaryOp<minus<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2791operator-(const _Expr& __x, const typename _Expr::value_type& __y) {
2792  typedef typename _Expr::value_type value_type;
2793  typedef _BinaryOp<minus<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2794  return __val_expr<_Op>(_Op(minus<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2795}
2796
2797template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2798inline _LIBCPP_HIDE_FROM_ABI
2799__val_expr<_BinaryOp<minus<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2800operator-(const typename _Expr::value_type& __x, const _Expr& __y) {
2801  typedef typename _Expr::value_type value_type;
2802  typedef _BinaryOp<minus<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2803  return __val_expr<_Op>(_Op(minus<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2804}
2805
2806template <class _Expr1,
2807          class _Expr2,
2808          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2809inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<bit_xor<typename _Expr1::value_type>, _Expr1, _Expr2> >
2810operator^(const _Expr1& __x, const _Expr2& __y) {
2811  typedef typename _Expr1::value_type value_type;
2812  typedef _BinaryOp<bit_xor<value_type>, _Expr1, _Expr2> _Op;
2813  return __val_expr<_Op>(_Op(bit_xor<value_type>(), __x, __y));
2814}
2815
2816template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2817inline _LIBCPP_HIDE_FROM_ABI
2818__val_expr<_BinaryOp<bit_xor<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2819operator^(const _Expr& __x, const typename _Expr::value_type& __y) {
2820  typedef typename _Expr::value_type value_type;
2821  typedef _BinaryOp<bit_xor<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2822  return __val_expr<_Op>(_Op(bit_xor<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2823}
2824
2825template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2826inline _LIBCPP_HIDE_FROM_ABI
2827__val_expr<_BinaryOp<bit_xor<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2828operator^(const typename _Expr::value_type& __x, const _Expr& __y) {
2829  typedef typename _Expr::value_type value_type;
2830  typedef _BinaryOp<bit_xor<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2831  return __val_expr<_Op>(_Op(bit_xor<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2832}
2833
2834template <class _Expr1,
2835          class _Expr2,
2836          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2837inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<bit_and<typename _Expr1::value_type>, _Expr1, _Expr2> >
2838operator&(const _Expr1& __x, const _Expr2& __y) {
2839  typedef typename _Expr1::value_type value_type;
2840  typedef _BinaryOp<bit_and<value_type>, _Expr1, _Expr2> _Op;
2841  return __val_expr<_Op>(_Op(bit_and<value_type>(), __x, __y));
2842}
2843
2844template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2845inline _LIBCPP_HIDE_FROM_ABI
2846__val_expr<_BinaryOp<bit_and<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2847operator&(const _Expr& __x, const typename _Expr::value_type& __y) {
2848  typedef typename _Expr::value_type value_type;
2849  typedef _BinaryOp<bit_and<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2850  return __val_expr<_Op>(_Op(bit_and<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2851}
2852
2853template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2854inline _LIBCPP_HIDE_FROM_ABI
2855__val_expr<_BinaryOp<bit_and<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2856operator&(const typename _Expr::value_type& __x, const _Expr& __y) {
2857  typedef typename _Expr::value_type value_type;
2858  typedef _BinaryOp<bit_and<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2859  return __val_expr<_Op>(_Op(bit_and<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2860}
2861
2862template <class _Expr1,
2863          class _Expr2,
2864          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2865inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<bit_or<typename _Expr1::value_type>, _Expr1, _Expr2> >
2866operator|(const _Expr1& __x, const _Expr2& __y) {
2867  typedef typename _Expr1::value_type value_type;
2868  typedef _BinaryOp<bit_or<value_type>, _Expr1, _Expr2> _Op;
2869  return __val_expr<_Op>(_Op(bit_or<value_type>(), __x, __y));
2870}
2871
2872template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2873inline _LIBCPP_HIDE_FROM_ABI
2874__val_expr<_BinaryOp<bit_or<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2875operator|(const _Expr& __x, const typename _Expr::value_type& __y) {
2876  typedef typename _Expr::value_type value_type;
2877  typedef _BinaryOp<bit_or<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2878  return __val_expr<_Op>(_Op(bit_or<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2879}
2880
2881template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2882inline _LIBCPP_HIDE_FROM_ABI
2883__val_expr<_BinaryOp<bit_or<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2884operator|(const typename _Expr::value_type& __x, const _Expr& __y) {
2885  typedef typename _Expr::value_type value_type;
2886  typedef _BinaryOp<bit_or<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2887  return __val_expr<_Op>(_Op(bit_or<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2888}
2889
2890template <class _Expr1,
2891          class _Expr2,
2892          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2893inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<__bit_shift_left<typename _Expr1::value_type>, _Expr1, _Expr2> >
2894operator<<(const _Expr1& __x, const _Expr2& __y) {
2895  typedef typename _Expr1::value_type value_type;
2896  typedef _BinaryOp<__bit_shift_left<value_type>, _Expr1, _Expr2> _Op;
2897  return __val_expr<_Op>(_Op(__bit_shift_left<value_type>(), __x, __y));
2898}
2899
2900template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2901inline _LIBCPP_HIDE_FROM_ABI
2902__val_expr< _BinaryOp<__bit_shift_left<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2903operator<<(const _Expr& __x, const typename _Expr::value_type& __y) {
2904  typedef typename _Expr::value_type value_type;
2905  typedef _BinaryOp<__bit_shift_left<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2906  return __val_expr<_Op>(_Op(__bit_shift_left<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2907}
2908
2909template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2910inline _LIBCPP_HIDE_FROM_ABI
2911__val_expr< _BinaryOp<__bit_shift_left<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2912operator<<(const typename _Expr::value_type& __x, const _Expr& __y) {
2913  typedef typename _Expr::value_type value_type;
2914  typedef _BinaryOp<__bit_shift_left<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2915  return __val_expr<_Op>(_Op(__bit_shift_left<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2916}
2917
2918template <class _Expr1,
2919          class _Expr2,
2920          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2921inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<__bit_shift_right<typename _Expr1::value_type>, _Expr1, _Expr2> >
2922operator>>(const _Expr1& __x, const _Expr2& __y) {
2923  typedef typename _Expr1::value_type value_type;
2924  typedef _BinaryOp<__bit_shift_right<value_type>, _Expr1, _Expr2> _Op;
2925  return __val_expr<_Op>(_Op(__bit_shift_right<value_type>(), __x, __y));
2926}
2927
2928template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2929inline _LIBCPP_HIDE_FROM_ABI __val_expr<
2930    _BinaryOp<__bit_shift_right<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2931operator>>(const _Expr& __x, const typename _Expr::value_type& __y) {
2932  typedef typename _Expr::value_type value_type;
2933  typedef _BinaryOp<__bit_shift_right<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2934  return __val_expr<_Op>(_Op(__bit_shift_right<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2935}
2936
2937template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2938inline _LIBCPP_HIDE_FROM_ABI
2939__val_expr< _BinaryOp<__bit_shift_right<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2940operator>>(const typename _Expr::value_type& __x, const _Expr& __y) {
2941  typedef typename _Expr::value_type value_type;
2942  typedef _BinaryOp<__bit_shift_right<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2943  return __val_expr<_Op>(_Op(__bit_shift_right<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2944}
2945
2946template <class _Expr1,
2947          class _Expr2,
2948          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2949inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<logical_and<typename _Expr1::value_type>, _Expr1, _Expr2> >
2950operator&&(const _Expr1& __x, const _Expr2& __y) {
2951  typedef typename _Expr1::value_type value_type;
2952  typedef _BinaryOp<logical_and<value_type>, _Expr1, _Expr2> _Op;
2953  return __val_expr<_Op>(_Op(logical_and<value_type>(), __x, __y));
2954}
2955
2956template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2957inline _LIBCPP_HIDE_FROM_ABI
2958__val_expr<_BinaryOp<logical_and<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2959operator&&(const _Expr& __x, const typename _Expr::value_type& __y) {
2960  typedef typename _Expr::value_type value_type;
2961  typedef _BinaryOp<logical_and<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2962  return __val_expr<_Op>(_Op(logical_and<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2963}
2964
2965template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2966inline _LIBCPP_HIDE_FROM_ABI
2967__val_expr<_BinaryOp<logical_and<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2968operator&&(const typename _Expr::value_type& __x, const _Expr& __y) {
2969  typedef typename _Expr::value_type value_type;
2970  typedef _BinaryOp<logical_and<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2971  return __val_expr<_Op>(_Op(logical_and<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
2972}
2973
2974template <class _Expr1,
2975          class _Expr2,
2976          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
2977inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<logical_or<typename _Expr1::value_type>, _Expr1, _Expr2> >
2978operator||(const _Expr1& __x, const _Expr2& __y) {
2979  typedef typename _Expr1::value_type value_type;
2980  typedef _BinaryOp<logical_or<value_type>, _Expr1, _Expr2> _Op;
2981  return __val_expr<_Op>(_Op(logical_or<value_type>(), __x, __y));
2982}
2983
2984template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2985inline _LIBCPP_HIDE_FROM_ABI
2986__val_expr<_BinaryOp<logical_or<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
2987operator||(const _Expr& __x, const typename _Expr::value_type& __y) {
2988  typedef typename _Expr::value_type value_type;
2989  typedef _BinaryOp<logical_or<value_type>, _Expr, __scalar_expr<value_type> > _Op;
2990  return __val_expr<_Op>(_Op(logical_or<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
2991}
2992
2993template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
2994inline _LIBCPP_HIDE_FROM_ABI
2995__val_expr<_BinaryOp<logical_or<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
2996operator||(const typename _Expr::value_type& __x, const _Expr& __y) {
2997  typedef typename _Expr::value_type value_type;
2998  typedef _BinaryOp<logical_or<value_type>, __scalar_expr<value_type>, _Expr> _Op;
2999  return __val_expr<_Op>(_Op(logical_or<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
3000}
3001
3002template <class _Expr1,
3003          class _Expr2,
3004          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
3005inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<equal_to<typename _Expr1::value_type>, _Expr1, _Expr2> >
3006operator==(const _Expr1& __x, const _Expr2& __y) {
3007  typedef typename _Expr1::value_type value_type;
3008  typedef _BinaryOp<equal_to<value_type>, _Expr1, _Expr2> _Op;
3009  return __val_expr<_Op>(_Op(equal_to<value_type>(), __x, __y));
3010}
3011
3012template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3013inline _LIBCPP_HIDE_FROM_ABI
3014__val_expr<_BinaryOp<equal_to<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
3015operator==(const _Expr& __x, const typename _Expr::value_type& __y) {
3016  typedef typename _Expr::value_type value_type;
3017  typedef _BinaryOp<equal_to<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3018  return __val_expr<_Op>(_Op(equal_to<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
3019}
3020
3021template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3022inline _LIBCPP_HIDE_FROM_ABI
3023__val_expr<_BinaryOp<equal_to<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
3024operator==(const typename _Expr::value_type& __x, const _Expr& __y) {
3025  typedef typename _Expr::value_type value_type;
3026  typedef _BinaryOp<equal_to<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3027  return __val_expr<_Op>(_Op(equal_to<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
3028}
3029
3030template <class _Expr1,
3031          class _Expr2,
3032          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
3033inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<not_equal_to<typename _Expr1::value_type>, _Expr1, _Expr2> >
3034operator!=(const _Expr1& __x, const _Expr2& __y) {
3035  typedef typename _Expr1::value_type value_type;
3036  typedef _BinaryOp<not_equal_to<value_type>, _Expr1, _Expr2> _Op;
3037  return __val_expr<_Op>(_Op(not_equal_to<value_type>(), __x, __y));
3038}
3039
3040template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3041inline _LIBCPP_HIDE_FROM_ABI
3042__val_expr<_BinaryOp<not_equal_to<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
3043operator!=(const _Expr& __x, const typename _Expr::value_type& __y) {
3044  typedef typename _Expr::value_type value_type;
3045  typedef _BinaryOp<not_equal_to<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3046  return __val_expr<_Op>(_Op(not_equal_to<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
3047}
3048
3049template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3050inline _LIBCPP_HIDE_FROM_ABI
3051__val_expr<_BinaryOp<not_equal_to<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
3052operator!=(const typename _Expr::value_type& __x, const _Expr& __y) {
3053  typedef typename _Expr::value_type value_type;
3054  typedef _BinaryOp<not_equal_to<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3055  return __val_expr<_Op>(_Op(not_equal_to<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
3056}
3057
3058template <class _Expr1,
3059          class _Expr2,
3060          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
3061inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<less<typename _Expr1::value_type>, _Expr1, _Expr2> >
3062operator<(const _Expr1& __x, const _Expr2& __y) {
3063  typedef typename _Expr1::value_type value_type;
3064  typedef _BinaryOp<less<value_type>, _Expr1, _Expr2> _Op;
3065  return __val_expr<_Op>(_Op(less<value_type>(), __x, __y));
3066}
3067
3068template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3069inline _LIBCPP_HIDE_FROM_ABI
3070__val_expr<_BinaryOp<less<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
3071operator<(const _Expr& __x, const typename _Expr::value_type& __y) {
3072  typedef typename _Expr::value_type value_type;
3073  typedef _BinaryOp<less<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3074  return __val_expr<_Op>(_Op(less<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
3075}
3076
3077template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3078inline _LIBCPP_HIDE_FROM_ABI
3079__val_expr<_BinaryOp<less<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
3080operator<(const typename _Expr::value_type& __x, const _Expr& __y) {
3081  typedef typename _Expr::value_type value_type;
3082  typedef _BinaryOp<less<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3083  return __val_expr<_Op>(_Op(less<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
3084}
3085
3086template <class _Expr1,
3087          class _Expr2,
3088          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
3089inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<greater<typename _Expr1::value_type>, _Expr1, _Expr2> >
3090operator>(const _Expr1& __x, const _Expr2& __y) {
3091  typedef typename _Expr1::value_type value_type;
3092  typedef _BinaryOp<greater<value_type>, _Expr1, _Expr2> _Op;
3093  return __val_expr<_Op>(_Op(greater<value_type>(), __x, __y));
3094}
3095
3096template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3097inline _LIBCPP_HIDE_FROM_ABI
3098__val_expr<_BinaryOp<greater<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
3099operator>(const _Expr& __x, const typename _Expr::value_type& __y) {
3100  typedef typename _Expr::value_type value_type;
3101  typedef _BinaryOp<greater<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3102  return __val_expr<_Op>(_Op(greater<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
3103}
3104
3105template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3106inline _LIBCPP_HIDE_FROM_ABI
3107__val_expr<_BinaryOp<greater<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
3108operator>(const typename _Expr::value_type& __x, const _Expr& __y) {
3109  typedef typename _Expr::value_type value_type;
3110  typedef _BinaryOp<greater<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3111  return __val_expr<_Op>(_Op(greater<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
3112}
3113
3114template <class _Expr1,
3115          class _Expr2,
3116          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
3117inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<less_equal<typename _Expr1::value_type>, _Expr1, _Expr2> >
3118operator<=(const _Expr1& __x, const _Expr2& __y) {
3119  typedef typename _Expr1::value_type value_type;
3120  typedef _BinaryOp<less_equal<value_type>, _Expr1, _Expr2> _Op;
3121  return __val_expr<_Op>(_Op(less_equal<value_type>(), __x, __y));
3122}
3123
3124template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3125inline _LIBCPP_HIDE_FROM_ABI
3126__val_expr<_BinaryOp<less_equal<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
3127operator<=(const _Expr& __x, const typename _Expr::value_type& __y) {
3128  typedef typename _Expr::value_type value_type;
3129  typedef _BinaryOp<less_equal<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3130  return __val_expr<_Op>(_Op(less_equal<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
3131}
3132
3133template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3134inline _LIBCPP_HIDE_FROM_ABI
3135__val_expr<_BinaryOp<less_equal<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
3136operator<=(const typename _Expr::value_type& __x, const _Expr& __y) {
3137  typedef typename _Expr::value_type value_type;
3138  typedef _BinaryOp<less_equal<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3139  return __val_expr<_Op>(_Op(less_equal<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
3140}
3141
3142template <class _Expr1,
3143          class _Expr2,
3144          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
3145inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<greater_equal<typename _Expr1::value_type>, _Expr1, _Expr2> >
3146operator>=(const _Expr1& __x, const _Expr2& __y) {
3147  typedef typename _Expr1::value_type value_type;
3148  typedef _BinaryOp<greater_equal<value_type>, _Expr1, _Expr2> _Op;
3149  return __val_expr<_Op>(_Op(greater_equal<value_type>(), __x, __y));
3150}
3151
3152template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3153inline _LIBCPP_HIDE_FROM_ABI
3154__val_expr<_BinaryOp<greater_equal<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
3155operator>=(const _Expr& __x, const typename _Expr::value_type& __y) {
3156  typedef typename _Expr::value_type value_type;
3157  typedef _BinaryOp<greater_equal<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3158  return __val_expr<_Op>(_Op(greater_equal<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
3159}
3160
3161template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3162inline _LIBCPP_HIDE_FROM_ABI
3163__val_expr<_BinaryOp<greater_equal<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
3164operator>=(const typename _Expr::value_type& __x, const _Expr& __y) {
3165  typedef typename _Expr::value_type value_type;
3166  typedef _BinaryOp<greater_equal<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3167  return __val_expr<_Op>(_Op(greater_equal<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
3168}
3169
3170template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3171inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__abs_expr<typename _Expr::value_type>, _Expr> >
3172abs(const _Expr& __x) {
3173  typedef typename _Expr::value_type value_type;
3174  typedef _UnaryOp<__abs_expr<value_type>, _Expr> _Op;
3175  return __val_expr<_Op>(_Op(__abs_expr<value_type>(), __x));
3176}
3177
3178template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3179inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__acos_expr<typename _Expr::value_type>, _Expr> >
3180acos(const _Expr& __x) {
3181  typedef typename _Expr::value_type value_type;
3182  typedef _UnaryOp<__acos_expr<value_type>, _Expr> _Op;
3183  return __val_expr<_Op>(_Op(__acos_expr<value_type>(), __x));
3184}
3185
3186template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3187inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__asin_expr<typename _Expr::value_type>, _Expr> >
3188asin(const _Expr& __x) {
3189  typedef typename _Expr::value_type value_type;
3190  typedef _UnaryOp<__asin_expr<value_type>, _Expr> _Op;
3191  return __val_expr<_Op>(_Op(__asin_expr<value_type>(), __x));
3192}
3193
3194template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3195inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__atan_expr<typename _Expr::value_type>, _Expr> >
3196atan(const _Expr& __x) {
3197  typedef typename _Expr::value_type value_type;
3198  typedef _UnaryOp<__atan_expr<value_type>, _Expr> _Op;
3199  return __val_expr<_Op>(_Op(__atan_expr<value_type>(), __x));
3200}
3201
3202template <class _Expr1,
3203          class _Expr2,
3204          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
3205inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<__atan2_expr<typename _Expr1::value_type>, _Expr1, _Expr2> >
3206atan2(const _Expr1& __x, const _Expr2& __y) {
3207  typedef typename _Expr1::value_type value_type;
3208  typedef _BinaryOp<__atan2_expr<value_type>, _Expr1, _Expr2> _Op;
3209  return __val_expr<_Op>(_Op(__atan2_expr<value_type>(), __x, __y));
3210}
3211
3212template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3213inline _LIBCPP_HIDE_FROM_ABI
3214__val_expr<_BinaryOp<__atan2_expr<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
3215atan2(const _Expr& __x, const typename _Expr::value_type& __y) {
3216  typedef typename _Expr::value_type value_type;
3217  typedef _BinaryOp<__atan2_expr<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3218  return __val_expr<_Op>(_Op(__atan2_expr<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
3219}
3220
3221template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3222inline _LIBCPP_HIDE_FROM_ABI
3223__val_expr<_BinaryOp<__atan2_expr<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
3224atan2(const typename _Expr::value_type& __x, const _Expr& __y) {
3225  typedef typename _Expr::value_type value_type;
3226  typedef _BinaryOp<__atan2_expr<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3227  return __val_expr<_Op>(_Op(__atan2_expr<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
3228}
3229
3230template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3231inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__cos_expr<typename _Expr::value_type>, _Expr> >
3232cos(const _Expr& __x) {
3233  typedef typename _Expr::value_type value_type;
3234  typedef _UnaryOp<__cos_expr<value_type>, _Expr> _Op;
3235  return __val_expr<_Op>(_Op(__cos_expr<value_type>(), __x));
3236}
3237
3238template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3239inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__cosh_expr<typename _Expr::value_type>, _Expr> >
3240cosh(const _Expr& __x) {
3241  typedef typename _Expr::value_type value_type;
3242  typedef _UnaryOp<__cosh_expr<value_type>, _Expr> _Op;
3243  return __val_expr<_Op>(_Op(__cosh_expr<value_type>(), __x));
3244}
3245
3246template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3247inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__exp_expr<typename _Expr::value_type>, _Expr> >
3248exp(const _Expr& __x) {
3249  typedef typename _Expr::value_type value_type;
3250  typedef _UnaryOp<__exp_expr<value_type>, _Expr> _Op;
3251  return __val_expr<_Op>(_Op(__exp_expr<value_type>(), __x));
3252}
3253
3254template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3255inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__log_expr<typename _Expr::value_type>, _Expr> >
3256log(const _Expr& __x) {
3257  typedef typename _Expr::value_type value_type;
3258  typedef _UnaryOp<__log_expr<value_type>, _Expr> _Op;
3259  return __val_expr<_Op>(_Op(__log_expr<value_type>(), __x));
3260}
3261
3262template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3263inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__log10_expr<typename _Expr::value_type>, _Expr> >
3264log10(const _Expr& __x) {
3265  typedef typename _Expr::value_type value_type;
3266  typedef _UnaryOp<__log10_expr<value_type>, _Expr> _Op;
3267  return __val_expr<_Op>(_Op(__log10_expr<value_type>(), __x));
3268}
3269
3270template <class _Expr1,
3271          class _Expr2,
3272          __enable_if_t<__is_val_expr<_Expr1>::value && __is_val_expr<_Expr2>::value, int> = 0>
3273inline _LIBCPP_HIDE_FROM_ABI __val_expr<_BinaryOp<__pow_expr<typename _Expr1::value_type>, _Expr1, _Expr2> >
3274pow(const _Expr1& __x, const _Expr2& __y) {
3275  typedef typename _Expr1::value_type value_type;
3276  typedef _BinaryOp<__pow_expr<value_type>, _Expr1, _Expr2> _Op;
3277  return __val_expr<_Op>(_Op(__pow_expr<value_type>(), __x, __y));
3278}
3279
3280template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3281inline _LIBCPP_HIDE_FROM_ABI
3282__val_expr<_BinaryOp<__pow_expr<typename _Expr::value_type>, _Expr, __scalar_expr<typename _Expr::value_type> > >
3283pow(const _Expr& __x, const typename _Expr::value_type& __y) {
3284  typedef typename _Expr::value_type value_type;
3285  typedef _BinaryOp<__pow_expr<value_type>, _Expr, __scalar_expr<value_type> > _Op;
3286  return __val_expr<_Op>(_Op(__pow_expr<value_type>(), __x, __scalar_expr<value_type>(__y, __x.size())));
3287}
3288
3289template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3290inline _LIBCPP_HIDE_FROM_ABI
3291__val_expr<_BinaryOp<__pow_expr<typename _Expr::value_type>, __scalar_expr<typename _Expr::value_type>, _Expr> >
3292pow(const typename _Expr::value_type& __x, const _Expr& __y) {
3293  typedef typename _Expr::value_type value_type;
3294  typedef _BinaryOp<__pow_expr<value_type>, __scalar_expr<value_type>, _Expr> _Op;
3295  return __val_expr<_Op>(_Op(__pow_expr<value_type>(), __scalar_expr<value_type>(__x, __y.size()), __y));
3296}
3297
3298template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3299inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__sin_expr<typename _Expr::value_type>, _Expr> >
3300sin(const _Expr& __x) {
3301  typedef typename _Expr::value_type value_type;
3302  typedef _UnaryOp<__sin_expr<value_type>, _Expr> _Op;
3303  return __val_expr<_Op>(_Op(__sin_expr<value_type>(), __x));
3304}
3305
3306template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3307inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__sinh_expr<typename _Expr::value_type>, _Expr> >
3308sinh(const _Expr& __x) {
3309  typedef typename _Expr::value_type value_type;
3310  typedef _UnaryOp<__sinh_expr<value_type>, _Expr> _Op;
3311  return __val_expr<_Op>(_Op(__sinh_expr<value_type>(), __x));
3312}
3313
3314template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3315inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__sqrt_expr<typename _Expr::value_type>, _Expr> >
3316sqrt(const _Expr& __x) {
3317  typedef typename _Expr::value_type value_type;
3318  typedef _UnaryOp<__sqrt_expr<value_type>, _Expr> _Op;
3319  return __val_expr<_Op>(_Op(__sqrt_expr<value_type>(), __x));
3320}
3321
3322template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3323inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__tan_expr<typename _Expr::value_type>, _Expr> >
3324tan(const _Expr& __x) {
3325  typedef typename _Expr::value_type value_type;
3326  typedef _UnaryOp<__tan_expr<value_type>, _Expr> _Op;
3327  return __val_expr<_Op>(_Op(__tan_expr<value_type>(), __x));
3328}
3329
3330template <class _Expr, __enable_if_t<__is_val_expr<_Expr>::value, int> = 0>
3331inline _LIBCPP_HIDE_FROM_ABI __val_expr<_UnaryOp<__tanh_expr<typename _Expr::value_type>, _Expr> >
3332tanh(const _Expr& __x) {
3333  typedef typename _Expr::value_type value_type;
3334  typedef _UnaryOp<__tanh_expr<value_type>, _Expr> _Op;
3335  return __val_expr<_Op>(_Op(__tanh_expr<value_type>(), __x));
3336}
3337
3338template <class _Tp>
3339inline _LIBCPP_HIDE_FROM_ABI _Tp* begin(valarray<_Tp>& __v) {
3340  return __v.__begin_;
3341}
3342
3343template <class _Tp>
3344inline _LIBCPP_HIDE_FROM_ABI const _Tp* begin(const valarray<_Tp>& __v) {
3345  return __v.__begin_;
3346}
3347
3348template <class _Tp>
3349inline _LIBCPP_HIDE_FROM_ABI _Tp* end(valarray<_Tp>& __v) {
3350  return __v.__end_;
3351}
3352
3353template <class _Tp>
3354inline _LIBCPP_HIDE_FROM_ABI const _Tp* end(const valarray<_Tp>& __v) {
3355  return __v.__end_;
3356}
3357
3358_LIBCPP_END_NAMESPACE_STD
3359
3360_LIBCPP_POP_MACROS
3361
3362#  if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
3363#    include <algorithm>
3364#    include <concepts>
3365#    include <cstdlib>
3366#    include <cstring>
3367#    include <functional>
3368#    include <stdexcept>
3369#    include <type_traits>
3370#  endif
3371#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
3372
3373#endif // _LIBCPP_VALARRAY
3374