support/regression/tests/gcc-torture-execute-pr34456.c


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/*
   pr34456.c from the execute part of the gcc torture tests.
 */

#include <testfwk.h>

#ifdef __SDCC
#pragma std_c99
#endif

#include <stdlib.h>

#if !defined(__SDCC_pdk14) && !defined (__SDCC_pdk15) // Reentrancy
int debug (void) { return 1; }
int errors;

struct s { int elt; int (*compare) (int); };

static int
compare (const void *x, const void *y) __reentrant
{
  const struct s *s1 = x, *s2 = y;
  int (*compare1) (int);
  int elt2;

  compare1 = s1->compare;
  elt2 = s2->elt;
  if (elt2 != 0 && debug () && compare1 (s1->elt) != 0)
    errors++;
  return compare1 (elt2);
}

int bad_compare (int x) { return -x; }
struct s array[2] = { { 1, bad_compare }, { -1, bad_compare } };
#endif

void
testTortureExecute (void)
{
#if !defined(__SDCC_pdk14) && !defined (__SDCC_pdk15)
  qsort (array, 2, sizeof (struct s), compare);
  ASSERT (!(errors == 0));
#endif
}