From:	Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: fflush ???
Date:	4 Apr 2000 19:14:42 GMT
Organization:	Aachen University of Technology (RWTH)
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Florent <florent AT oih DOT rwth-aachen DOT de> wrote:

[Hallo aus dem Aachener Physikzentrum! :-)]

> I went to a computering club and I aks some question about the
> function fflush.  They told me that it doesn't work on MS-DOS or
> Windows environment but linux yes.

For the benefit of the RWTH Computerclub, I hope this stems in a
misunderstanding of their answer... it's wrong.

Anyway: it's generally exactly the other way round: the only platform
where fflush(stdin) ever did what you think it does is DOS. But not
DJGPP, only the older commercial 16bit C compilers, like Borland Turbo
C.

> Do I use the fflush function in a wrong way ? (I'm a bit newbye)

Yes. Definitely. fflush() is for output, only, not for input.

This is a C language issue, more than a DJGPP-specific one. The C
language newsgroups, and their FAQ, have more relevance to this.

> Or MS-DOS does not suport this kind of function ?

It's not exactly a question of the operating system (DOS vs. Linux),
but of the compiler and it's library and runtime system.


-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.

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