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___ITERATOR_OSTREAM_ITERATOR_H 11 #define _LIBCPP___ITERATOR_OSTREAM_ITERATOR_H 12 13 #include <__config> 14 #include <__iterator/iterator.h> 15 #include <__iterator/iterator_traits.h> 16 #include <__memory/addressof.h> 17 #include <iosfwd> // for forward declarations of char_traits and basic_ostream 18 19 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 20 #pragma GCC system_header 21 #endif 22 23 _LIBCPP_BEGIN_NAMESPACE_STD 24 25 _LIBCPP_SUPPRESS_DEPRECATED_PUSH 26 template <class _Tp, class _CharT = char, class _Traits = char_traits<_CharT> > 27 class _LIBCPP_TEMPLATE_VIS ostream_iterator 28 #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) 29 : public iterator<output_iterator_tag, void, void, void, void> 30 #endif 31 { 32 _LIBCPP_SUPPRESS_DEPRECATED_POP 33 public: 34 typedef output_iterator_tag iterator_category; 35 typedef void value_type; 36 #if _LIBCPP_STD_VER > 17 37 typedef ptrdiff_t difference_type; 38 #else 39 typedef void difference_type; 40 #endif 41 typedef void pointer; 42 typedef void reference; 43 typedef _CharT char_type; 44 typedef _Traits traits_type; 45 typedef basic_ostream<_CharT, _Traits> ostream_type; 46 47 private: 48 ostream_type* __out_stream_; 49 const char_type* __delim_; 50 public: 51 _LIBCPP_INLINE_VISIBILITY ostream_iterator(ostream_type& __s) _NOEXCEPT 52 : __out_stream_(_VSTD::addressof(__s)), __delim_(nullptr) {} 53 _LIBCPP_INLINE_VISIBILITY ostream_iterator(ostream_type& __s, const _CharT* __delimiter) _NOEXCEPT 54 : __out_stream_(_VSTD::addressof(__s)), __delim_(__delimiter) {} 55 _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator=(const _Tp& __value_) 56 { 57 *__out_stream_ << __value_; 58 if (__delim_) 59 *__out_stream_ << __delim_; 60 return *this; 61 } 62 63 _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator*() {return *this;} 64 _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator++() {return *this;} 65 _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator++(int) {return *this;} 66 }; 67 68 _LIBCPP_END_NAMESPACE_STD 69 70 #endif // _LIBCPP___ITERATOR_OSTREAM_ITERATOR_H 71