Re: [Bug-gnulib] 03-getndelim2-c89.diff

[Bruno Haible]

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. The relevant sections in ISO C 99 are
section 6.9.1 Function definitions
section 6.7.5.3 Function declarators

Citing 6.7.5.3:

 (10) The special case of an unnamed parameter of type void as the only
      item in the list specifies that the function has no parameters.

 (14) An identifier list declares only the identifiers of the parameters
      of the function. An empty list in a function declarator that is part
      of a definition of that function specifies that the function has
      no parameters. The empty list in a function declarator that is not
      part of a definition of that function specifies that no information
      about the number or types of the parameters is supplied.

So this means that an empty arglist in a function _definition_ is equivalent
to an arglist "(void)".

If Paul Eggert agrees that it's a gcc bug, I'll report it to the gcc people.

Bruno