libstdc++-v3/testsuite/26_numerics/complex/complex_value.cc

   1 // { dg-do run { xfail broken_cplxf_arg } }
   2 // { dg-options "-O0" }
   3 // 2000-11-20
   4 // Benjamin Kosnik bkoz@redhat.com
   5
   6 // Copyright (C) 2000, 2003, 2004 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 2, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING.  If not, write to the Free
  21 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  22 // USA.
  23
  24 #include <complex>
  25 #include <testsuite_hooks.h>
  26
  27 void test01()
  28 {
  29  using namespace std;
  30  bool test __attribute__((unused)) = true;
  31  typedef complex<double> complex_type;
  32  const double cd1 = -11.451;
  33  const double cd2 = -442.1533;
  34
  35  complex_type a(cd1, cd2);
  36  double d;
  37  d = a.real();
  38  VERIFY( d == cd1);
  39
  40  d = a.imag();
  41  VERIFY(d == cd2);
  42
  43  complex_type c(cd1, cd2);
  44  double d6 = abs(c);
  45  VERIFY( d6 >= 0);
  46
  47  double d7 = arg(c);
  48  double d8 = atan2(c.imag(), c.real());
  49  VERIFY( d7 == d8);
  50
  51  double d9 = norm(c);
  52  double d10 = d6 * d6;
  53  VERIFY(d9 - d10 == 0);
  54
  55  complex_type e = conj(c);
  56
  57  complex_type f = polar(c.imag(), 0.0);
  58  VERIFY(f.real() != 0);
  59 }
  60
  61
  62 int main()
  63 {
  64   test01();
  65   return 0;
  66 }