| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___MEMORY_DESTRUCT_N_H |
| #define _LIBCPP___MEMORY_DESTRUCT_N_H |
| |
| #include <__config> |
| #include <__type_traits/integral_constant.h> |
| #include <__type_traits/is_trivially_destructible.h> |
| #include <cstddef> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| struct __destruct_n |
| { |
| private: |
| size_t __size_; |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY void __process(_Tp* __p, false_type) _NOEXCEPT |
| {for (size_t __i = 0; __i < __size_; ++__i, ++__p) __p->~_Tp();} |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY void __process(_Tp*, true_type) _NOEXCEPT |
| {} |
| |
| _LIBCPP_INLINE_VISIBILITY void __incr(false_type) _NOEXCEPT |
| {++__size_;} |
| _LIBCPP_INLINE_VISIBILITY void __incr(true_type) _NOEXCEPT |
| {} |
| |
| _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, false_type) _NOEXCEPT |
| {__size_ = __s;} |
| _LIBCPP_INLINE_VISIBILITY void __set(size_t, true_type) _NOEXCEPT |
| {} |
| public: |
| _LIBCPP_INLINE_VISIBILITY explicit __destruct_n(size_t __s) _NOEXCEPT |
| : __size_(__s) {} |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY void __incr() _NOEXCEPT |
| {__incr(integral_constant<bool, is_trivially_destructible<_Tp>::value>());} |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, _Tp*) _NOEXCEPT |
| {__set(__s, integral_constant<bool, is_trivially_destructible<_Tp>::value>());} |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY void operator()(_Tp* __p) _NOEXCEPT |
| {__process(__p, integral_constant<bool, is_trivially_destructible<_Tp>::value>());} |
| }; |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___MEMORY_DESTRUCT_N_H |