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expected (C++23)

定义于头文件 `<cstdarg>`
void va_end ( std :: va_list ap ) ;

va_end 宏用于清理通过调用 va_start 或 va_copy 初始化的 ap 对象。 va_end 可能会修改 ap 使其不再可用。

如果没有对应的 va_start 或 va_copy 调用，或者在调用 va_start 或 va_copy 的函数返回前未调用 va_end ，则行为是未定义的。

参数

ap

-

要清理的 va_list 类型实例

展开值

(无)

参见

va_start	启用对可变参数函数参数的访问 (函数宏)
va_copy (C++11)	复制可变参数函数的参数 (函数宏)
va_arg	访问下一个可变参数函数参数 (函数宏)
C 文档关于 va_end