gcc/testsuite/gcc.dg/torture/builtin-sin-mpfr-1.c

   1 /* Version 2.2.0 of MPFR had bugs in sin rounding.  This test checks
   2    to see if that buggy version was installed.  The problem is fixed
   3    in the MPFR cumulative patch http://www.mpfr.org/mpfr-current and
   4    presumably later MPFR versions.
   5
   6    Origin: Kaveh R. Ghazi 10/23/2006.  */
   7
   8 /* { dg-do link } */
   9
  10 extern void link_error (int, double, double);
  11
  12 #define TESTIT(ARG,RES) do { \
  13   if (sizeof (double) == 8 && __builtin_sin(ARG) != RES) \
  14     link_error(__LINE__, __builtin_sin(ARG), RES); \
  15   } while (0);
  16
  17 int main()
  18 {
  19   TESTIT (-0x1.c0016155c4da3p-1, -0x1.88fc58bcf030dp-1);
  20
  21   TESTIT (0x1.30654d85c2756p-2, 0x1.2beeb9de27a79p-2);
  22
  23   TESTIT (0x1.fe68ccaa8e201p+2, 0x1.fc3f0c54e97a7p-1);
  24
  25   /* This case should always pass.  */
  26   TESTIT (0.0, 0.0);
  27
  28   return 0;
  29 }
  30