gcc/testsuite/gcc.dg/dfp/compare-rel-const.c

   1 /* { dg-options "-std=gnu99" } */
   2
   3 /* C99 6.5.8 Relational operators.
   4    Compare decimal float constants against each other. */
   5
   6 extern void link_error (void);
   7
   8 int
   9 main ()
  10 {
  11   /* Compare like-typed negative constants. */
  12   if (-2.0dl < -2.0dl)
  13     link_error ();
  14
  15   /* Compare like-typed constants. */
  16   if (-2.0dl >= .01dl)
  17     link_error ();
  18
  19   /* Compare like-typed constants. */
  20   if (0.2dd > 0.02e1dd)
  21     link_error ();
  22
  23   /* Compare decimal float constants of different types. */
  24   if (-.000005dd >= -.0000049DL)
  25   link_error();
  26
  27   /* Test use gcc builtins for comparisons. */
  28   if (__builtin_isless(-2.0dl,-2.0dl))
  29     link_error();
  30
  31   if (__builtin_isgreaterequal(-2.0dl,.01dl))
  32     link_error();
  33
  34   if (!(__builtin_islessequal(-2.0dl, -2.0dd)))
  35     link_error();
  36
  37   if (!(__builtin_isgreater(2.0dl, -2.0dd)))
  38     link_error();
  39
  40   if (__builtin_islessequal(2.0df, __builtin_nand64("")))
  41     link_error();
  42
  43   if (__builtin_islessgreater(2.0dd, __builtin_nand64("")))
  44     link_error();
  45
  46   if (!__builtin_islessgreater(2.0dd, -2.0dd))
  47     link_error();
  48
  49   if (!__builtin_islessgreater(-3.0dd, 2.0dd))
  50     link_error();
  51
  52   if (__builtin_isunordered(1.1df, 0.003dd))
  53     link_error();
  54
  55   if (!__builtin_isunordered(-3.1df, __builtin_nand32("")))
  56     link_error();
  57
  58   return 0;
  59 }