差异atexit（）和at_quick_exit（）

Question

atexit()和at_quick_exit()之间的区别是什么？ 我们在atexit（）注册的每个函数是否也必须在at_quick_exit（）处注册？ 例如Phoenix-Singleton自定义函数或其他东西。

Answer 1

好吧，来自at_quick_exit：

Registers the function pointed to by func to be called on quick program termination (via std::quick_exit). ... The registered functions will not be called on normal program termination. If a function need to be called in that case, std::atexit must be used.

在atexit()上调用exit()上注册的功能。在at_quick_exit()上调用在quick_exit()注册的功能 另一个区别是at_quick_exit()可从C ++ 11获得，但在C中不可用。