std::swap(std::basic_string) (3) Linux Manual Page

std::swap(std::basic_string) – std::swap(std::basic_string)

Synopsis

template <class CharT, class Traits, class Alloc>

void swap(std::basic_string<CharT, Traits, Alloc> &lhs, (until C++ 17)

                                                            std::basic_string<CharT, Traits, Alloc> &rhs);

template <class CharT, class Traits, class Alloc>

void swap(std::basic_string<CharT, Traits, Alloc> &lhs, (since C++ 17)

                                                            std::basic_string<CharT, Traits, Alloc> &rhs) noexcept(/* see below */);

Specializes the std::swap algorithm for std::basic_string. Swaps the contents of lhs and rhs. Equivalent to lhs.swap(rhs).

Parameters

lhs, rhs – strings whose contents to swap

Return value

(none)

Complexity

Constant.

Exceptions

                                  (since C++17)
noexcept specification:
noexcept(noexcept(lhs.swap(rhs)))

See also

     swaps the contents
swap (public member function)