Defined in header

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

void swap( basic_ostringstream& other );

int_type peek();

std::locale imbue( const std::locale& loc );

The C I/O subset of the C++ standard library implements C-style stream input/output operations. The <cstdio> header provides generic file operation support

strstreambuf* rdbuf() const;

template< class CharT, class Traits > void swap( basic_fstream<CharT

void swap( basic_fstream& other );

protected: virtual int_type underflow();