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Re: [Bug-gnulib] 03-getndelim2-c89.diff
From: |
Paul Eggert |
Subject: |
Re: [Bug-gnulib] 03-getndelim2-c89.diff |
Date: |
24 Jul 2003 19:08:19 -0700 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 |
Bruno Haible <address@hidden> writes:
> James Youngman wrote:
> > I'm not sure that's true :-
>
> > 3 void voidargs1()
> > 16 voidargs1('a');
> > address@hidden:~$ gcc -Wall -W -g voidargs.c -o voidargs
> > [no error message for line 16]
>
> I think that's a bug in gcc.
No, it's not a bug. See section 6.5.2.2 paragraph 2 of ISO C99:
If the expression that denotes the called function has a type that
includes a prototype, the number of arguments shall agree with the
number of parameters.
voidargs1 lacks a prototype, so no diagnostic is required for line 16.
The behavior is undefined, though (see paragraph 6 of the same section).
The extra compile-time check is why it's advantageous to use an
explicit (void) prototype in C.
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, (continued)
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Derek Robert Price, 2003/07/22
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Paul Eggert, 2003/07/22
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Derek Robert Price, 2003/07/22
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Paul Eggert, 2003/07/22
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Derek Robert Price, 2003/07/23
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Bruno Haible, 2003/07/24
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, James Youngman, 2003/07/24
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Bruno Haible, 2003/07/24
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Derek Robert Price, 2003/07/24
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Tyler Berry, 2003/07/24
- Re: [Bug-gnulib] 03-getndelim2-c89.diff,
Paul Eggert <=
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Derek Robert Price, 2003/07/24
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Derek Robert Price, 2003/07/24
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Paul Eggert, 2003/07/24
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Derek Robert Price, 2003/07/25
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Bruno Haible, 2003/07/22
- Re: [Bug-gnulib] 03-getndelim2-c89.diff, Derek Robert Price, 2003/07/22
Re: [Bug-gnulib] 03-getndelim2-c89.diff, Derek Robert Price, 2003/07/23