int_type sputbackc( char_type c );
template< class CharT, class Traits > basic_istream<CharT,Traits>&
Defined in header
protected: virtual pos_type seekoff(off_type off,
protected: virtual int_type pbackfail( int_type c = Traits::eof()
char_type* eback() const; (1)
int_type sgetc();
bool eof() const;
void swap( basic_ofstream& other );
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