Difference between revisions of "cpp/string/basic string/swap"
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< cpp | string | basic string
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===Complexity=== | ===Complexity=== | ||
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Revision as of 05:09, 18 October 2013
| void swap( basic_string& other ); |
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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" << '\n'; std::cout << "a: " << a << '\n'; std::cout << "b: " << b << '\n'; a.swap(b); std::cout << "after swap" << '\n'; std::cout << "a: " << a << '\n'; std::cout << "b: " << b << '\n'; }
Output:
before swap a: AAA b: BBB after swap a: BBB b: AAA
Complexity
Constant.
