1*4bdff4beSrobert //===----------------------------------------------------------------------===// 2*4bdff4beSrobert // 3*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information. 5*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*4bdff4beSrobert // 7*4bdff4beSrobert //===----------------------------------------------------------------------===// 8*4bdff4beSrobert 9*4bdff4beSrobert #ifndef _LIBCPP___MEMORY_DESTRUCT_N_H 10*4bdff4beSrobert #define _LIBCPP___MEMORY_DESTRUCT_N_H 11*4bdff4beSrobert 12*4bdff4beSrobert #include <__config> 13*4bdff4beSrobert #include <__type_traits/integral_constant.h> 14*4bdff4beSrobert #include <__type_traits/is_trivially_destructible.h> 15*4bdff4beSrobert #include <cstddef> 16*4bdff4beSrobert 17*4bdff4beSrobert #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 18*4bdff4beSrobert # pragma GCC system_header 19*4bdff4beSrobert #endif 20*4bdff4beSrobert 21*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD 22*4bdff4beSrobert 23*4bdff4beSrobert struct __destruct_n 24*4bdff4beSrobert { 25*4bdff4beSrobert private: 26*4bdff4beSrobert size_t __size_; 27*4bdff4beSrobert 28*4bdff4beSrobert template <class _Tp> __process__destruct_n29*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY void __process(_Tp* __p, false_type) _NOEXCEPT 30*4bdff4beSrobert {for (size_t __i = 0; __i < __size_; ++__i, ++__p) __p->~_Tp();} 31*4bdff4beSrobert 32*4bdff4beSrobert template <class _Tp> __process__destruct_n33*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY void __process(_Tp*, true_type) _NOEXCEPT 34*4bdff4beSrobert {} 35*4bdff4beSrobert __incr__destruct_n36*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY void __incr(false_type) _NOEXCEPT 37*4bdff4beSrobert {++__size_;} __incr__destruct_n38*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY void __incr(true_type) _NOEXCEPT 39*4bdff4beSrobert {} 40*4bdff4beSrobert __set__destruct_n41*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, false_type) _NOEXCEPT 42*4bdff4beSrobert {__size_ = __s;} __set__destruct_n43*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY void __set(size_t, true_type) _NOEXCEPT 44*4bdff4beSrobert {} 45*4bdff4beSrobert public: __destruct_n__destruct_n46*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY explicit __destruct_n(size_t __s) _NOEXCEPT 47*4bdff4beSrobert : __size_(__s) {} 48*4bdff4beSrobert 49*4bdff4beSrobert template <class _Tp> __incr__destruct_n50*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY void __incr() _NOEXCEPT 51*4bdff4beSrobert {__incr(integral_constant<bool, is_trivially_destructible<_Tp>::value>());} 52*4bdff4beSrobert 53*4bdff4beSrobert template <class _Tp> __set__destruct_n54*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, _Tp*) _NOEXCEPT 55*4bdff4beSrobert {__set(__s, integral_constant<bool, is_trivially_destructible<_Tp>::value>());} 56*4bdff4beSrobert 57*4bdff4beSrobert template <class _Tp> operator__destruct_n58*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY void operator()(_Tp* __p) _NOEXCEPT 59*4bdff4beSrobert {__process(__p, integral_constant<bool, is_trivially_destructible<_Tp>::value>());} 60*4bdff4beSrobert }; 61*4bdff4beSrobert 62*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD 63*4bdff4beSrobert 64*4bdff4beSrobert #endif // _LIBCPP___MEMORY_DESTRUCT_N_H 65