Article View: comp.sources.d
Article #1296Re: problems building abc
From: Sean Eric Fagan
Date: Tue, 01 Jan 1991 21:15
Date: Tue, 01 Jan 1991 21:15
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2688 bytes
In article <SCHULTE.91Jan1200851@sun0.thp.uni-koeln.de> schulte@thp.uni-koeln.de (Martin Schulte) writes:
>>But the big question - which I have reported to the authors - is what is
>>the call to remove _really_ supposed to be? Remove() deletes files. It
> ^^^^^^^^
>>doesn't look like that is what is wanted here at all.
>
>I only took a short look on the sources, why do you think it should remove
>files ?
kithrup 1> man S remove
REMOVE(S) UNIX System V REMOVE(S)
Name
remove - removes filename
Syntax
#include <stdio.h>
int remove (filename)
const char *filename;
Description
The remove function causes the file whose name is the string
pointed to by filename to be no longer accessible by that
name. A subsequent attempt to open that file using that
name will fail, unless it is created anew. If the file is
open, the behavior of the remove function is
implementation-defined.
[etc.]
Seems to me that that pretty much indicates that remove() removes files,
don't you think?
Listen *very* carefully: it doesn't matter *what* compiler you use, if you
have a function <x> in your standard library, and a program y which has its
own definition of a function <x>, then you are opening yourself up to
problems. What are you going to do if some of the other routines from your
standard library use the function <x>, and the alien <x> has different
semantics? (As it does in this case.) For an example of how to totally
screw yourself, take any given program, and add this function:
int
write(int a, char *b, int c, void *d) {
printf ("a = %d, b = %s, c = %d, d = %x\n",
a, b, c, d);
return -5;
}
This is an example of "Name Space Pollution." Both ANSI and POSIX have
addressed this, and have come up with a list of functions and variables that
are not to be touched by application programmers. remove() is in both of
them.
--
Sean Eric Fagan | "I made the universe, but please don't blame me for it;
sef@kithrup.COM | I had a bellyache at the time."
-----------------+ -- The Turtle (Stephen King, _It_)
Any opinions expressed are my own, and generally unpopular with others.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!watserv1!watmath!att!pacbell.com!mips!zaphod.mps.ohio-state.edu!usc!csun!kithrup!sef From: sef@kithrup.COM (Sean Eric Fagan) Newsgroups: comp.sources.d Subject: Re: problems building abc Message-ID: <1991Jan01.211524.18484@kithrup.COM> Date: 1 Jan 91 21:15:24 GMT References: <SCHULTE.91Jan1200851@sun0.thp.uni-koeln.de> Organization: Kithrup Enterprises, Ltd. Lines: 60