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Mail Archives: djgpp/2000/09/28/23:45:24

From: "Richard Jernigan" <richard AT randomly DOT com>
Newsgroups: comp.os.msdos.djgpp,rec.games.programmer,alt.games.programming
References: <39D39533 DOT 33F46DA4 AT wxs DOT nl>
Subject: Re: Help with variable argument-list (va_list)
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Date: Fri, 29 Sep 2000 03:43:03 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

> I have tried the code below, and the first argument works, but not the
> second. What is wrong in this example?
>
> void test_me(char *fmt, ... ) {
>    va_list ap;
>    va_start(ap,fmt);
>    printf(fmt,va_arg(ap,va_list));
>    va_end(ap);
>    }

va_arg evaluates to only the next element in the list. You need something
like this:

void test_me(char *fmt, ...) {
   va_list ap;
   va_start(ap, fmt);
   vprintf(fmt, ap);
   va_end(ap);
}

--Richard


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