gcc/testsuite/gcc.c-torture/execute/20120427-1.c

   1 typedef struct sreal
   2 {
   3   unsigned sig;         /* Significant.  */
   4   int exp;              /* Exponent.  */
   5 } sreal;
   6
   7 sreal_compare (sreal *a, sreal *b)
   8 {
   9   if (a->exp > b->exp)
  10     return 1;
  11   if (a->exp < b->exp)
  12     return -1;
  13   if (a->sig > b->sig)
  14     return 1;
  15   return -(a->sig < b->sig);
  16 }
  17
  18 sreal a[] = {
  19    { 0, 0 },
  20    { 1, 0 },
  21    { 0, 1 },
  22    { 1, 1 }
  23 };
  24
  25 int main()
  26 {
  27   int i, j;
  28   for (i = 0; i <= 3; i++) {
  29     for (j = 0; j < 3; j++) {
  30       if (i < j && sreal_compare(&a[i], &a[j]) != -1) abort();
  31       if (i == j && sreal_compare(&a[i], &a[j]) != 0) abort();
  32       if (i > j && sreal_compare(&a[i], &a[j]) != 1) abort();
  33     }
  34   }
  35   return 0;
  36 }