libstdc++-v3/testsuite/26_numerics/headers/cmath/c99_classification_macros_c++0x.cc

   1 // Copyright (C) 2010-2014 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-options "-std=gnu++0x" }
  19 // { dg-do compile { xfail uclibc } }
  20 // { dg-excess-errors "" { target uclibc } }
  21
  22 #include <cmath>
  23
  24 void fpclassify() { }
  25
  26 void isfinite() { }
  27
  28 void isinf() { }
  29
  30 void isnan() { }
  31
  32 void isnormal() { }
  33
  34 void signbit() { }
  35
  36 void isgreater() { }
  37
  38 void isgreaterequal() { }
  39
  40 void isless() { }
  41
  42 void islessequal() { }
  43
  44 void islessgreater() { }
  45
  46 void isunordered() { }
  47
  48 #if _GLIBCXX_USE_C99_MATH
  49 template <typename _Tp, typename _Up = _Tp>
  50   void test_c99_classify()
  51   {
  52     bool test __attribute__((unused)) = true;
  53
  54     typedef _Tp fp_type_one;
  55     typedef _Up fp_type_two;
  56     fp_type_one f1 = 1.0;
  57     fp_type_two f2 = 3.0;
  58     int resi;
  59     bool res;
  60
  61     resi = std::fpclassify(f1);
  62     res = std::isfinite(f2);
  63     res = std::isinf(f1);
  64     res = std::isnan(f2);
  65     res = std::isnormal(f1);
  66     res = std::signbit(f2);
  67     res = std::isgreater(f1, f2);
  68     res = std::isgreaterequal(f1, f2);
  69     res = std::isless(f1, f2);
  70     res = std::islessequal(f1,f2);
  71     res = std::islessgreater(f1, f2);
  72     res = std::isunordered(f1, f2);
  73     resi = resi; // Suppress unused warning.
  74     res = res;
  75   }
  76 #endif
  77
  78 int main()
  79 {
  80 #if _GLIBCXX_USE_C99_MATH
  81   test_c99_classify<float>();
  82   test_c99_classify<double>();
  83   test_c99_classify<long double>();
  84   test_c99_classify<float, double>();
  85   test_c99_classify<float, long double>();
  86   test_c99_classify<double, float>();
  87   test_c99_classify<double, long double>();
  88   test_c99_classify<long double, float>();
  89   test_c99_classify<long double, double>();
  90 #endif
  91   return 0;
  92 }