wprintf warning

[Tolga Dalman]

hi,

On Wed, 07 May 2003 17:32:12 -0400 Jim Marshall <jim.marshall@wbemsolutions.com>
wrote:

> Hello,
>  I'm sure this has been asked before, but UI can not find the answer via 
> searching this list or on google. I'm testing out the use of wchar.h for 
> a project I'm working on, I wrote a simple "Hello World" program, but it 
> gives me a warning when it is compiled with -Wall:
> 
> /* wprint_test.c */
> #include <stdio.h>
> #include <wchar.h>
> 
> int main(int argc, char** argv) {
>   wprintf(L"Hello World\n");
>   return 0;
> }
> 
> When I compile this with -Wall I get:
> 
> cc -Wall wprint_test.c
> wprint_test.c: In function 'main':
> wprint_test.c:5: warning: implicit declaration of function 'wprintf'
> 
> what do I need to do to compile with -Wall and not get this warning (I 
> have tried adding -D__USE_ISOC99 and -D__USE_UNIX98). Is it possible?
> 
> Using gcc 3.2 20020903 (Red Hat Linux 8.0 3.2-7)

you have to add "-std=c99" resp. "-std=gnu99". i believe, for such questions,
you should query the gcc-help mailinglist. 


brg, 
Tolga Dalman.