API Reference Document
std::allocator<T>::
destroy
<
cpp
|
memory
|
allocator
C++
语言
标准库头文件
自立与有宿主实现
具名要求
语言支持库
概念库
(C++20)
诊断库
工具库
字符串库
容器库
迭代器库
范围库
(C++20)
算法库
数值库
本地化库
输入/输出库
文件系统库
(C++17)
正则表达式库
(C++11)
原子操作库
(C++11)
线程支持库
(C++11)
技术规范
动态内存管理
智能指针
unique_ptr
(C++11)
shared_ptr
(C++11)
weak_ptr
(C++11)
auto_ptr
(C++17 前)
owner_less
(C++11)
enable_shared_from_this
(C++11)
bad_weak_ptr
(C++11)
default_delete
(C++11)
分配器
allocator
allocator_traits
(C++11)
allocator_arg_t
(C++11)
allocator_arg
(C++11)
uses_allocator
(C++11)
uses_allocator_construction_args
(C++20)
make_obj_using_allocator
(C++20)
uninitialized_construct_using_allocator
(C++20)
scoped_allocator_adaptor
(C++11)
pmr::polymorphic_allocator
(C++17)
内存资源
pmr::memory_resource
(C++17)
pmr::get_default_resource
(C++17)
pmr::set_default_resource
(C++17)
pmr::new_delete_resource
(C++17)
pmr::null_memory_resource
(C++17)
pmr::synchronized_pool_resource
(C++17)
pmr::unsynchronized_pool_resource
(C++17)
pmr::monotonic_buffer_resource
(C++17)
pmr::pool_options
(C++17)
未初始化存储
raw_storage_iterator
(C++20 前)
get_temporary_buffer
(C++20 前)
return_temporary_buffer
(C++20 前)
未初始化内存算法
uninitialized_copy
uninitialized_fill
uninitialized_move
(C++17)
uninitialized_default_construct
(C++17)
uninitialized_value_construct
(C++17)
destroy
(C++17)
destroy_at
(C++17)
uninitialized_copy_n
(C++11)
uninitialized_fill_n
uninitialized_move_n
(C++17)
uninitialized_default_construct_n
(C++17)
uninitialized_value_construct_n
(C++17)
destroy_n
(C++17)
construct_at
(C++20)
有制约的未初始化内存算法
ranges::uninitialized_copy
(C++20)
ranges::uninitialized_fill
(C++20)
ranges::uninitialized_move
(C++20)
ranges::uninitialized_default_construct
(C++20)
ranges::uninitialized_value_construct
(C++20)
ranges::destroy
(C++20)
ranges::destroy_at
(C++20)
ranges::uninitialized_copy_n
(C++20)
ranges::uninitialized_fill_n
(C++20)
ranges::uninitialized_move_n
(C++20)
ranges::uninitialized_default_construct_n
(C++20)
ranges::uninitialized_value_construct_n
(C++20)
ranges::destroy_n
(C++20)
ranges::construct_at
(C++20)
垃圾收集支持
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
pointer_traits
(C++11)
to_address
(C++20)
addressof
(C++11)
align
(C++11)
assume_aligned
(C++20)
C 库
malloc
aligned_alloc
(C++17)
calloc
realloc
free
低层内存管理
std::allocator
成员函数
allocator::allocator
allocator::~allocator
allocator::address
(C++20 前)
allocator::allocate
allocator::deallocate
allocator::max_size
(C++20 前)
allocator::construct
(C++20 前)
allocator::destroy
(C++20 前)
非成员函数
operator==
operator!=
(C++20 前)
定义于头文件
<memory>
void
destroy
(
pointer p
)
;
(C++11 前)
template
<
class
U
>
void
destroy
(
U
*
p
)
;
(C++11 起)
(C++17 中弃用)
(C++20 中移除)
调用
p
所指的对象的析构函数
1)
调用
(
(
T
*
)
p
)
-
>
~T
(
)
2)
调用
p
-
>
~U
(
)
参数
p
-
指向要被销毁的对象的指针
返回值
(无)
参阅
destroy
[静态]
析构存储于已分配存储的对象
(函数模板)