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 <iostream>
#include <string_view>

int main()
{
std::string_view a = "AAA";
std::string_view b = "BBBB";

std::cout << "Before swap:\n"
"a = " << a << "\n"
"b = " << b << "\n\n";

a.swap(b);

std::cout << "After swap:\n"
"a = " << a << "\n"
"b = " << b << '\n';
}

Output:¶

Before swap:
a = AAA
b = BBBB

After swap:
a = BBBB
b = AAA

See also¶

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