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/* Contributed by Nicola Pero - Thu Mar  8 16:27:46 CET 2001 */

#include <objc/objc.h>

#include <stdarg.h>

/* Test method with variable number of arguments */

@interface MathClass

{

  Class isa;

}

/* sum positive numbers; -1 ends the list */

+ (int) sum: (int)firstNumber, ...;

@end

@implementation MathClass

+ (int) sum: (int)firstNumber, ...

{

  va_list ap;

  int sum = 0, number = 0;

  va_start (ap, firstNumber);

  number = firstNumber;

  while (number >= 0)

    {

      sum += number;

      number = va_arg (ap, int);

    }

  va_end (ap);

  return sum;

}

+ initialize { return self; }

@end

int main (void)

{

  if ([MathClass sum: 1, 2, 3, 4, 5, -1] != 15)

    {

      abort ();

    }

  return 0;

}