warning: `__builtin_next_arg' called without an argument

[cpjust]

Does anyone know what this warning means and if I need to worry about it? Maybe also how to fix it?
Here's the code it's complaining about:

void DTRACE(    int  level,
	const char*  fmt,
		... )
{
#if defined( DEBUG ) && defined( ANSI )
	va_list	pArgs;
	char*	pArg;
	char	cArg;
	char	c;
	int	iArg;
	long	lArg;

	if ( GetDebugLevel() < level )
	{
		return;
	}

	va_start( pArgs );  /**** Warning is here. ****/

	while ( (c = *fmt++) )
	{
		if ( c != '%' )
		{
			putchar( c );
			continue;
		}

		c = *fmt++;

		switch ( c )
		{
		case 'c':
			cArg = va_arg( pArgs, int );
			putchar( cArg );
			break;
		case 'i':
			iArg = va_arg( pArgs, int );
			printf( "%d", iArg );
			break;
		case 'l':
			lArg = va_arg( pArgs, long );
			printf( "%ld", lArg );
			break;
		case 'u':
			c = *fmt++;

			switch ( c )
			{
			case 'c':
				cArg = va_arg( pArgs, unsigned int );
				putchar( cArg );
				break;
			case 'i':
				iArg = va_arg( pArgs, unsigned int );
				printf( "%ud", iArg );
				break;
			case 'l':
				lArg = va_arg( pArgs, unsigned long );
				printf( "%lu", lArg );
				break;
			default:
				puts( "Error!  Unknown unsigned format specifier in DTRACE()!" );
				break;
			}
			break;
		case 's':
			pArg = va_arg( pArgs, char* );
			puts( pArg );
			break;
		default:
			puts( "Error!  Unknown format specifier in DTRACE()!" );
			break;
		}
	} /* End of while */

	va_end( pArgs );
#endif
}

[Salem]

> va_start( pArgs );
It takes 2 params.
The 2nd param is the name of the last named parameter, eg.
va_start( pArgs, fmt );

[cpjust]

Oops.
That would explain the strange output I just got...

[dwks]

I'm not sure exactly what your function is for, but you probably don't need all that code. Usually you can get by with calling vprintf() or vfprintf() or something like that. http://www.opengroup.org/onlinepubs/...s/vprintf.html