gcc/testsuite/gcc.c-torture/execute/va-arg-13.c

   1 /* derived from mozilla source code */
   2
   3 #include <stdarg.h>
   4
   5 void abort (void);
   6 void exit (int);
   7
   8 typedef struct {
   9   void *stream;
  10   va_list ap;
  11   int nChar;
  12 } ScanfState;
  13
  14 void dummy (va_list vap)
  15 {
  16   if (va_arg (vap, int) != 1234) abort();
  17   return;
  18 }
  19
  20 void test (int fmt, ...)
  21 {
  22   ScanfState state, *statep;
  23
  24   statep = &state;
  25
  26   va_start (statep->ap, fmt);
  27   dummy (statep->ap);
  28   va_end (statep->ap);
  29
  30   va_start (state.ap, fmt);
  31   dummy (state.ap);
  32   va_end (state.ap);
  33
  34   return;
  35 }
  36
  37 int main (void)
  38 {
  39   test (456, 1234);
  40   exit (0);
  41 }