gcc/testsuite/gcc.dg/dfp/fe-convert-2.c

   1 /* { dg-options "-mno-hard-dfp" { target { s390*-*-* } } } */
   2
   3 /* Check that appropriate exceptions are raised for BFP to DFP conversions.
   4    The test only uses double and _Decimal32; tests for conversions to
   5    _Decimal64 would need 128-bit long double.  */
   6
   7 #include "fe-check.h"
   8
   9 volatile _Decimal32 d32;
  10 volatile double d;
  11
  12 CONVERT (100, d, d32, 1.0e96, FE_INEXACT)
  13 CONVERT (101, d, d32, 1.0e97, FE_OVERFLOW|FE_INEXACT)
  14 CONVERT (102, d, d32, -1.0e96, FE_INEXACT)
  15 CONVERT (103, d, d32, -1.0e97, FE_OVERFLOW|FE_INEXACT)
  16
  17 /* FIXME: These only result in fp exceptions when libbid is used.
  18    libdecnumber doesn't work correctly.  */
  19 CONVERT (104, d, d32, 1.0e-96, FE_UNDERFLOW|FE_INEXACT)
  20 CONVERT (105, d, d32, 0.00048828125, FE_INEXACT)  /* exact power of 2 */
  21
  22 int
  23 main ()
  24 {
  25   convert_100 ();
  26   convert_101 ();
  27   convert_102 ();
  28   convert_103 ();
  29   convert_104 ();
  30   convert_105 ();
  31
  32   FINISH
  33 }