gcc/testsuite/gcc.dg/single-precision-constant.c

   1 /* Test that double precision constants are correctly handled
   2    when code is compiled with -fsingle-precision-constant */
   3 /* Origin: Carlos O'Donell <carlos@codesourcery.com> */
   4
   5 /* { dg-do run } */
   6 /* { dg-options "-fsingle-precision-constant" } */
   7 /* { dg-add-options c99_runtime } */
   8
   9 #include <math.h>
  10 #include <float.h>
  11
  12 #include "builtins-config.h"
  13
  14 int main (void)
  15 {
  16   int result = 0;
  17   double local_DBL_MAX = DBL_MAX;
  18   double local_DBL_MIN = DBL_MIN;
  19 #ifdef HAVE_C99_RUNTIME
  20   if (isinf (local_DBL_MAX))
  21     result |= 1;
  22 #endif
  23   if (local_DBL_MIN <= 0.0)
  24     result |= 1;
  25   return result;
  26 }