c++ - std::string::clear 和 std::list::clear 是否从内存中删除数据

Question

在 string::clear 函数的描述中，它说:

clear: Erases the contents of the string, which becomes an empty string (with a length of 0 characters).

在 list::clear 函数的描述中，它说:

clear: Removes all elements from the list container (which are destroyed), and leaving the container with a size of 0.

清除是覆盖字符串和列表的内存还是只是释放它们？

Answer 1

这两个函数都不需要覆盖已删除的数据。