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Re: fflush does not detect error case when operating on stdin
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From: |
Paul Jarc |
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Subject: |
Re: fflush does not detect error case when operating on stdin |
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Date: |
Tue, 08 Feb 2005 10:49:52 -0500 |
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User-agent: |
Gnus/5.110003 (No Gnus v0.3) Emacs/21.3 (gnu/linux) |
Bernard WEISSER <address@hidden> wrote:
> I found a code that tried to fflush on stdin and that returned a 0
> status but a non-nul errno value.
Calling fflush on an input stream gives undefined behavior, according
to the C standard. Also, library calls are allowed to set errno even
when there is no error. errno is meaningful only when the call fails.
paul