basic_stringbuf& operator=(basic_stringbuf&& rhs);

Effects: After the move assignment *this has the observable state it would have had if it had been move constructed from rhs (see [stringbuf.cons]).

void swap(basic_stringbuf& rhs) noexcept(see below);

Preconditions: allocator_traits<Allocator>​::​propagate_on_container_swap​::​value is true or get_allocator() == rhs.get_allocator() is true.

Effects: Exchanges the state of *this and rhs.

Remarks: The exception specification is equivalent to:

allocator_traits<Allocator>​::​propagate_on_container_swap​::​value ||

allocator_traits<Allocator>​::​is_always_equal​::​value

template<class charT, class traits, class Allocator> void swap(basic_stringbuf<charT, traits, Allocator>& x, basic_stringbuf<charT, traits, Allocator>& y) noexcept(noexcept(x.swap(y)));

Effects: Equivalent to x.swap(y).