43 #ifndef _GLIBCXX_MEMORY
44 #define _GLIBCXX_MEMORY 1
46 #pragma GCC system_header
69 #if __cplusplus >= 201103L
77 # include <bits/uses_allocator.h>
81 # include <bits/shared_ptr.h>
83 # if _GLIBCXX_USE_DEPRECATED
90 #if __cplusplus >= 201103L
92 # ifdef _GLIBCXX_USE_C99_STDINT_TR1
93 namespace std _GLIBCXX_VISIBILITY(default)
95 _GLIBCXX_BEGIN_NAMESPACE_VERSION
114 align(
size_t __align,
size_t __size,
void*& __ptr,
size_t& __space)
noexcept
116 const auto __intptr =
reinterpret_cast<uintptr_t
>(__ptr);
117 const auto __aligned = (__intptr - 1u + __align) & -__align;
118 const auto __diff = __aligned - __intptr;
119 if ((__size + __diff) > __space)
124 return __ptr =
reinterpret_cast<void*
>(__aligned);
130 enum class pointer_safety { relaxed, preferred, strict };
133 declare_reachable(
void*) { }
135 template <
typename _Tp>
137 undeclare_reachable(_Tp* __p) {
return __p; }
140 declare_no_pointers(
char*,
size_t) { }
143 undeclare_no_pointers(
char*,
size_t) { }
145 inline pointer_safety
146 get_pointer_safety()
noexcept {
return pointer_safety::relaxed; }
148 _GLIBCXX_END_NAMESPACE_VERSION
150 #endif // _GLIBCXX_USE_C99_STDINT_TR1
enable_if< ::__array_traits< _Tp, _Nm >::_Is_swappable::value >::type noexcept(noexcept(__one.swap(__two)))
swap
void * align(size_t __align, size_t __size, void *&__ptr, size_t &__space) noexcept
Fit aligned storage in buffer.