virtual int_type underflow();

This header is part of the types support library.

void lock();

future(); (1)

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template< class... Args > std::pair<iterator,bool> emplace(

template< class CharT, class Traits > void swap( std::basic_filebuf<CharT

virtual int_type uflow();

template< class CharT, class Traits > basic_istream<CharT,Traits>&