msvcrt: fread: fill buffer on small reads

Alexandre Julliard julliard at
Wed Oct 11 02:53:36 CDT 2006

Duane Clark <dclark at> writes:

> Are you referring to _read() or read_i()? Those don't have an
> associated internal file buffer/cache (I guess because they don't have
> an associated file->_cnt and _ptr). Or were you referring to some
> other read call?
> fread already does a _read() once it determines the current buffer is empty.

Yes, and on small reads what it should do is a bigger _read() to
refill the buffer, instead of limiting it to the size that the app

Alexandre Julliard
julliard at

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