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-options "-fsingle-precision-constant -mmacosx-version-min=10.3" { target powerpc-*-darwin* } } */
   8 /* { dg-options "-fsingle-precision-constant -std=c99" { target *-*-solaris2* } } */
   9
  10 #include <math.h>
  11 #include <float.h>
  12
  13 #include "builtins-config.h"
  14
  15 int main (void)
  16 {
  17   int result = 0;
  18   double local_DBL_MAX = DBL_MAX;
  19   double local_DBL_MIN = DBL_MIN;
  20 #ifdef HAVE_C99_RUNTIME
  21   if (isinf (local_DBL_MAX))
  22     result |= 1;
  23 #endif
  24   if (local_DBL_MIN <= 0.0)
  25     result |= 1;
  26   return result;
  27 }