Difference between revisions of "cpp/string/basic string/swap"
From cppreference.com
< cpp | string | basic string
| Line 39: | Line 39: | ||
| output= | | output= | ||
| + | before swap | ||
| + | a: AAA | ||
| + | b: BBB | ||
| + | after swap | ||
| + | a: BBB | ||
| + | b: AAA | ||
}} | }} | ||
Revision as of 05:02, 18 October 2013
| void swap( basic_string& other ); |
||
Exchanges the contents of the string with those of other. All iterators and references remain valid.
Contents |
Parameters
| other | - | string to exchange the contents with |
Return value
(none)
Example
Run this code
#include <string> #include <iostream> int main() { std::string a = "AAA"; std::string b = "BBB"; std::cout << "before swap" << std::endl; std::cout << "a: " << a << std::endl; std::cout << "b: " << b << std::endl; a.swap(b); std::cout << "after swap" << std::endl; std::cout << "a: " << a << std::endl; std::cout << "b: " << b << std::endl; return 0; }
Output:
before swap a: AAA b: BBB after swap a: BBB b: AAA
Complexity
constant
