std::return_temporary_buffer

来自cppreference.com

 
 
实用工具库
类型的支持 (basic types, RTTI, type traits)
动态内存管理
错误处理
程序实用工具
可变参数函数
日期和时间
函数对象
initializer_list(C++11)
bitset
hash(C++11)
关系运算符
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Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
双和元组
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Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
掉期,远期和移动
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Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
动态内存管理
低级别的内存管理
分配器
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Allocators
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allocator
allocator_traits(C++11)
allocator_arg_t(C++11)
allocator_arg(C++11)
uses_allocator(C++11)
scoped_allocator_adaptor(C++11)
未初始化的存储空间
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Uninitialized storage
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uninitialized_copy
uninitialized_copy_n(C++11)
uninitialized_fill
uninitialized_fill_n
raw_storage_iterator
get_temporary_buffer
return_temporary_buffer
智能指针
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Smart pointers
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unique_ptr(C++11)
shared_ptr(C++11)
weak_ptr(C++11)
auto_ptr(过时了)
owner_less(C++11)
enable_shared_from_this(C++11)
bad_weak_ptr(C++11)
default_delete(C++11)
垃圾收集的支持
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Garbage collection support
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declare_reachable(C++11)
undeclare_reachable(C++11)
declare_no_pointers(C++11)
undeclare_no_pointers(C++11)
pointer_safety(C++11)
get_pointer_safety(C++11)
杂项
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Miscellaneous
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pointer_traits(C++11)
addressof(C++11)
align(C++11)
C库
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C Library
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Defined in header <memory>
template< class T >
void return_temporary_buffer( T* p )
会释放存储分配与std::get_temporary_buffer.
Original:
Deallocates storage previously allocated with std::get_temporary_buffer.
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目录

[编辑] 参数

p -
以前的指针返回std::get_temporary_buffer
Original:
the pointer previously returned by std::get_temporary_buffer
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[编辑] 返回值

(无)
Original:
(none)
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[编辑] 为例

[edit]
#include <algorithm>
#include <iostream>
#include <memory>
#include <string>
 
int main()
{
    const std::string s[] = {"string", "1", "test", "..."};
    std::string* p = std::get_temporary_buffer<std::string>(4).first;
 
    std::copy(std::begin(s), std::end(s),
              std::raw_storage_iterator<std::string*, std::string>(p));
 
    for (std::string* i = p; i != p+4; ++i) {
        std::cout << *i << '\n';
        i->~basic_string<char>();
    }
    std::return_temporary_buffer(p);
}

Output:

string
1
test
...

[编辑] 另请参阅

获得未初始化的存储
Original:
obtains uninitialized storage
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(函数模板) [edit]