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 /* { dg-add-options c99_runtime } */
  11
  12 #include "builtins-config.h"
  13
  14 extern void link_error(void);
  15
  16 extern float cabsf (float _Complex);
  17 extern double cabs (double _Complex);
  18 extern long double cabsl (long double _Complex);
  19
  20 int
  21 main (void)
  22 {
  23   /* For each type, test both runtime and compile time (constant folding)
  24      optimization.  */
  25   float _Complex fc = 3.0F + 4.0iF;
  26   double _Complex dc = 3.0 + 4.0i;
  27   long double _Complex ldc = 3.0L + 4.0iL;
  28
  29 #ifdef HAVE_C99_RUNTIME
  30   /* Test floats.  */
  31   if (cabsf (fc) != 5.0F)
  32     link_error ();
  33   if (__builtin_cabsf (fc) != 5.0F)
  34     link_error ();
  35   if (cabsf (3.0F + 4.0iF) != 5.0F)
  36     link_error ();
  37   if (__builtin_cabsf (3.0F + 4.0iF) != 5.0F)
  38     link_error ();
  39 #endif
  40
  41   /* Test doubles.  */
  42   if (cabs (dc) != 5.0)
  43     link_error ();
  44   if (__builtin_cabs (dc) != 5.0)
  45     link_error ();
  46   if (cabs (3.0 + 4.0i) != 5.0)
  47     link_error ();
  48   if (__builtin_cabs (3.0 + 4.0i) != 5.0)
  49     link_error ();
  50
  51 #ifdef HAVE_C99_RUNTIME
  52   /* Test long doubles.  */
  53   if (cabsl (ldc) != 5.0L)
  54     link_error ();
  55   if (__builtin_cabsl (ldc) != 5.0L)
  56     link_error ();
  57   if (cabsl (3.0L + 4.0iL) != 5.0L)
  58     link_error ();
  59   if (__builtin_cabsl (3.0L + 4.0iL) != 5.0L)
  60     link_error ();
  61 #endif
  62
  63   return 0;
  64 }
  65