explicit operator bool() const;

A constructor that is not declared with the specifier explicit

std::basic_string<CharT,Traits,Allocator> str() const; (1)

void clear();

Defined in header

This header is part of the dynamic memory management

Defined in header

template< class... Args > void emplace_front( Args&&

explicit basic_ostringstream( ios_base::openmode mode = ios_base::out );

float max_load_factor() const; (1)