gcc/testsuite/gcc.c-torture/execute/20120427-2.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   if (a->sig < b->sig)
  16     return -1;
  17   return 0;
  18 }
  19
  20 sreal a[] = {
  21    { 0, 0 },
  22    { 1, 0 },
  23    { 0, 1 },
  24    { 1, 1 }
  25 };
  26
  27 int main()
  28 {
  29   int i, j;
  30   for (i = 0; i <= 3; i++) {
  31     for (j = 0; j < 3; j++) {
  32       if (i < j && sreal_compare(&a[i], &a[j]) != -1) abort();
  33       if (i == j && sreal_compare(&a[i], &a[j]) != 0) abort();
  34       if (i > j && sreal_compare(&a[i], &a[j]) != 1) abort();
  35     }
  36   }
  37   return 0;
  38 }