Include the iostreams
to declare forward references to several template classes used
throughout iostreams. All such template classes are defined in other
standard headers. You include this header explicitly only when
you need one of the above declarations, but not its definition.
// DECLARATIONS typedef T1 streamoff; typedef T2 streamsize; typedef fpos streampos; // CLASSES class char_traits; class ios; class streambuf; class istream; class ostream; class stringbuf; class istringstream; class ostringstream; class filebuf; class ifstream; class ofstream; // END OF DECLARATIONS
Copyright © 1992-2002 by P.J. Plauger. All rights reserved.