std::get_new_handler

 

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低层内存管理

函数

operator newoperator new[]

operator deleteoperator delete[]

get_new_handler (C++11)

set_new_handler

类

bad_alloc

bad_array_new_length (C++11)

align_val_t (C++17)

类型

new_handler

对象

nothrow

destroying_delete (C++20)

对象访问

launder (C++17)

 

在标头 <new> 定义
std::new_handler get_new_handler() noexcept;		(C++11 起)

返回当前安装的 new 处理函数，它可以是空指针值。

此函数是线程安全的。先前对 std::set_new_handler 的调用同步于（见 std::memory_order ）对 std::get_new_handler 的后继调用。

参数

（无）

返回值

当前安装的 new 处理函数，它可以是空指针值。

参阅

operator newoperator new[]	分配函数 (函数)
set_new_handler	注册一个 new 处理函数 (函数)
new_handler	new 处理函数的函数指针类型 (typedef)