gcc/testsuite/gcc.dg/builtins-18.c

   1 /* Copyright (C) 2003 Free Software Foundation.
   2
   3    Check that built-in cabs, cabsf and cabsl functions don't
   4    break anything and produces the expected results.
   5
   6    Written by Roger Sayle, 1st June 2003.  */
   7
   8 /* { dg-do link } */
   9 /* { dg-options "-O2 -ffast-math" } */
  10
  11 #include "builtins-config.h"
  12
  13 extern void link_error(void);
  14
  15 extern float cabsf (float _Complex);
  16 extern double cabs (double _Complex);
  17 extern long double cabsl (long double _Complex);
  18
  19 int
  20 main (void)
  21 {
  22   /* For each type, test both runtime and compile time (constant folding)
  23      optimization.  */
  24   float _Complex fc = 3.0F + 4.0iF;
  25   double _Complex dc = 3.0 + 4.0i;
  26   long double _Complex ldc = 3.0L + 4.0iL;
  27
  28 #ifdef HAVE_C99_RUNTIME
  29   /* Test floats.  */
  30   if (cabsf (fc) != 5.0F)
  31     link_error ();
  32   if (__builtin_cabsf (fc) != 5.0F)
  33     link_error ();
  34   if (cabsf (3.0F + 4.0iF) != 5.0F)
  35     link_failure ();
  36   if (__builtin_cabsf (3.0F + 4.0iF) != 5.0F)
  37     link_failure ();
  38 #endif
  39
  40   /* Test doubles.  */
  41   if (cabs (dc) != 5.0)
  42     link_error ();
  43   if (__builtin_cabs (dc) != 5.0)
  44     link_error ();
  45   if (cabs (3.0 + 4.0i) != 5.0)
  46     link_failure ();
  47   if (__builtin_cabs (3.0 + 4.0i) != 5.0)
  48     link_failure ();
  49
  50 #ifdef HAVE_C99_RUNTIME
  51   /* Test long doubles.  */
  52   if (cabsl (ldc) != 5.0L)
  53     link_error ();
  54   if (__builtin_cabsl (ldc) != 5.0L)
  55     link_error ();
  56   if (cabsl (3.0L + 4.0iL) != 5.0L)
  57     link_failure ();
  58   if (__builtin_cabsl (3.0L + 4.0iL) != 5.0L)
  59     link_failure ();
  60 #endif
  61
  62   return 0;
  63 }
  64