C++

参考

<regex>

basic_regex

public member function
<regex>

std::basic_regex::swap

void swap (basic_regex& rgx);
交换内容
Exchanges the regular expression in the basic_regex object by the regular expression in rgx. All properties are exchanged.

This is done in constant time by exchanging internal pointers.

参数

rgx
Another basic_regex object of the same type.

返回值

无

另见

basic_regex::assign
Assign regular expression (public member function)
swap (basic_regex)
Exchanges the contents of two regex (function template)