diff options
Diffstat (limited to 'r23/sources/cxx-stl/llvm-libc++/include/__sso_allocator')
-rw-r--r-- | r23/sources/cxx-stl/llvm-libc++/include/__sso_allocator | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/r23/sources/cxx-stl/llvm-libc++/include/__sso_allocator b/r23/sources/cxx-stl/llvm-libc++/include/__sso_allocator deleted file mode 100644 index 393012873..000000000 --- a/r23/sources/cxx-stl/llvm-libc++/include/__sso_allocator +++ /dev/null @@ -1,76 +0,0 @@ -// -*- C++ -*- -//===----------------------------------------------------------------------===// -// -// 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___SSO_ALLOCATOR -#define _LIBCPP___SSO_ALLOCATOR - -#include <__config> -#include <type_traits> -#include <new> - -#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -#pragma GCC system_header -#endif - -_LIBCPP_BEGIN_NAMESPACE_STD - -template <class _Tp, size_t _Np> class _LIBCPP_HIDDEN __sso_allocator; - -template <size_t _Np> -class _LIBCPP_HIDDEN __sso_allocator<void, _Np> -{ -public: - typedef const void* const_pointer; - typedef void value_type; -}; - -template <class _Tp, size_t _Np> -class _LIBCPP_HIDDEN __sso_allocator -{ - typename aligned_storage<sizeof(_Tp) * _Np>::type buf_; - bool __allocated_; -public: - typedef size_t size_type; - typedef _Tp* pointer; - typedef _Tp value_type; - - _LIBCPP_INLINE_VISIBILITY __sso_allocator() throw() : __allocated_(false) {} - _LIBCPP_INLINE_VISIBILITY __sso_allocator(const __sso_allocator&) throw() : __allocated_(false) {} - template <class _Up> _LIBCPP_INLINE_VISIBILITY __sso_allocator(const __sso_allocator<_Up, _Np>&) throw() - : __allocated_(false) {} -private: - __sso_allocator& operator=(const __sso_allocator&); -public: - _LIBCPP_INLINE_VISIBILITY pointer allocate(size_type __n, typename __sso_allocator<void, _Np>::const_pointer = 0) - { - if (!__allocated_ && __n <= _Np) - { - __allocated_ = true; - return (pointer)&buf_; - } - return static_cast<pointer>(_VSTD::__libcpp_allocate(__n * sizeof(_Tp), _LIBCPP_ALIGNOF(_Tp))); - } - _LIBCPP_INLINE_VISIBILITY void deallocate(pointer __p, size_type __n) - { - if (__p == (pointer)&buf_) - __allocated_ = false; - else - _VSTD::__libcpp_deallocate(__p, __n * sizeof(_Tp), _LIBCPP_ALIGNOF(_Tp)); - } - _LIBCPP_INLINE_VISIBILITY size_type max_size() const throw() {return size_type(~0) / sizeof(_Tp);} - - _LIBCPP_INLINE_VISIBILITY - bool operator==(__sso_allocator& __a) const {return &buf_ == &__a.buf_;} - _LIBCPP_INLINE_VISIBILITY - bool operator!=(__sso_allocator& __a) const {return &buf_ != &__a.buf_;} -}; - -_LIBCPP_END_NAMESPACE_STD - -#endif // _LIBCPP___SSO_ALLOCATOR |