Subject: Re: Is fclose(NULL) defined?
To: None <lukem@telstra.com.au>
From: Callum Gibson <callum@frost.bain.oz.au>
List: current-users
Date: 09/13/1995 11:20:51
Luke Mewburn writes:
:-)> The implementors of those versions of fclose() might have confused
:-)> it with fflush(). Fflush() *can* be called with a NULL argument
:-)> (meaning to fflush() all output files). Not that it matters, since
:-)> fclose(NULL) is undefined behaviour, which means anything can
:-)> happen, including not crashing.
:-)Yes, but IMHO libc should error-check stuff, even simple null pointer
:-)checks would save a lot of hassles.

If it's going to error-check stuff like that it should do it with asserts.
To silently allow bad code like fclose(NULL) is simply encouraging bad
programming.

regards,
    Callum

Callum Gibson                                             callum@bain.oz.au
Fixed Income Division, DB Bain & Co.                          61 2 258 1620
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