NAME¶

std::basic_string_view::swap - std::basic_string_view::swap

Synopsis¶

constexpr void swap( basic_string_view& v ) noexcept; (since C++17)

Exchanges the view with that of v.

Parameters¶

v - view to swap with

Return value¶

(none)

Complexity¶

Constant.

Example¶

// Run this code

#include <string_view>
#include <iostream>

int main() {
auto s1{ std::string_view{"⏺⏺⏺⏺⏺"} };
auto s2{ std::string_view{"⏹⏹⏹⏹⏹"} };

std::cout << "Before : " << s1 << ' ' << s2 << "\n";
s1.swap(s2);
std::cout << "After : " << s1 << ' ' << s2 << "\n";
}

Output:¶

Before : ⏺⏺⏺⏺⏺ ⏹⏹⏹⏹⏹
After : ⏹⏹⏹⏹⏹ ⏺⏺⏺⏺⏺

See also¶

swap swaps the values of two objects
(function template)
swap_ranges swaps two ranges of elements
(function template)
swap swaps the contents
(public member function of std::basic_string<CharT,Traits,Allocator>)