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

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