AFAICT, basic_istream::gcount() will return how many elements were read for
basic_istream::read() because of course the EOF can occur in the middle of
the read.

I have looked around at documentation on Internet (GNU's), checked 3rd
edition of Stoustrup's book and other source material, but I cannot find the
equivalant function for basic_ostream::write(). Why is this? write's may
fail depending on medium.

Was this omitted in the ISO C++ standard? If so, why the lack of symmetry
and how are we supposed to determine how many elements have been written
out?

Thank you

Stephen Howe


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