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Date: Sat, 28 Nov 1998 01:32:29 -0500
From: "Michael E. Mercer" <mmercer@ipass.net>
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To: "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG>
Subject: stdarg.h - weird infinite loop.
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here'a my code...what am I doing wrong?
I tried using vsprintf first..it is an infinite loop as well.

Notice I included stdarg.h ... va_end has no definition??

Thanks
Michael

#ifndef _STDARG_H_
#define _STDARG_H_

typedef char *va_list;

#define __va_size(type) \
        (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))

#ifdef __GNUC__
#define va_start(ap, last) \
        ((ap) = (va_list)__builtin_next_arg(last))
#else
#define va_start(ap, last) \
        ((ap) = (va_list)&(last) + __va_size(last))
#endif

#define va_arg(ap, type) \
        (*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))

#define va_end(ap)

#endif /* !_STDARG_H_ */

---------------------------------------------------
create_and_print_string ( const int size, ... )
{  
   short rc = 0;
   char line[2000];
   char tmp[50];
   char *fmt = NULL;
   va_list ap;
   int i = 0;
   int len = 0;
   
   bzero ( line , sizeof ( char ) * 2000 );
   
   va_start(ap, size);
   
   fmt = va_arg ( ap , char * );
   
   len = strlen ( fmt );
   
   for ( i = 0; i < len ; i++ )
   {
      switch ( fmt[i] )
      {
         case '%':
            i++;
            switch ( fmt[i] )
            {
               case 'd': sprintf( tmp , "%d", va_arg ( ap , int ));
                         strcat ( line , tmp );
                         break;
               case 's': sprintf( tmp , "%s", va_arg ( ap , char * ));
                         strcat ( line , tmp );
                         break;
               default:  sprintf( tmp , "%%%c", fmt[i] );
                         strcat ( line, tmp );
                         break;           }
            break;
         default:  sprintf( tmp , "%c", fmt[i] );
                   strcat ( line , tmp );
                   break;
      }
   }
   
   va_end ( ap );
   
   rc = print_string ( line );
   
   return ( rc );
}
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