std::basic_string_view<CharT,Traits>::operator= - cppreference.com

De cppreference.com

`constexpr basic_string_view& operator=( const basic_string_view& view ) noexcept = default;`		(desde C++17)

Reemplaza la vista con la vista de view.

*this

Constante.

#include <iostream>
#include <string_view>
int main()
{
    std::string_view v = "Hola, mundo";
    v = v.substr(6);
    std::cout << v << '\n';
}

Salida: