gcc/testsuite/gcc.dg/builtins-57.c

   1 /* { dg-do link } */
   2 /* { dg-options "-std=c99 -ffinite-math-only -O" } */
   3
   4 #include "builtins-config.h"
   5
   6 extern void link_error (void);
   7
   8 extern double floor (double);
   9 extern double trunc (double);
  10 extern double fabs (double);
  11
  12 void test (double x)
  13 {
  14 #ifdef HAVE_C99_RUNTIME
  15   if (floor (fabs (x)) != trunc (fabs (x)))
  16     link_error ();
  17 #endif
  18   if (__builtin_lfloor (fabs (x)) != (long)fabs (x))
  19     link_error ();
  20 }
  21
  22 int main (void)
  23 {
  24   return 0;
  25 }