libstdc++-v3/testsuite/25_algorithms/max/2.cc

   1 // 2000-03-29 sss/bkoz
   2
   3 // Copyright (C) 2000-2017 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <algorithm>
  21 #include <functional>
  22 #include <testsuite_hooks.h>
  23
  24 template<typename T>
  25   struct A { static const T a; };
  26
  27 template<typename T>
  28 const T A<T>::a = T(3);
  29
  30 void test02()
  31 {
  32   VERIFY( 3 == std::max(A<int>::a, 2) );
  33   VERIFY( 4 == std::max(A<int>::a, 4) );
  34
  35   VERIFY( 3u == std::max(A<unsigned int>::a, 2u) );
  36   VERIFY( 4u == std::max(A<unsigned int>::a, 4u) );
  37
  38   VERIFY( 3l == std::max(A<long>::a, 2l) );
  39   VERIFY( 4l == std::max(A<long>::a, 4l) );
  40
  41   VERIFY( 3ul == std::max(A<unsigned long>::a, 2ul) );
  42   VERIFY( 4ul == std::max(A<unsigned long>::a, 4ul) );
  43
  44 #ifdef _GLIBCXX_USE_LONG_LONG
  45   VERIFY( 3ll == std::max(A<long long>::a, 2ll) );
  46   VERIFY( 4ll == std::max(A<long long>::a, 4ll) );
  47
  48   VERIFY( 3ull == std::max(A<unsigned long long>::a, 2ull) );
  49   VERIFY( 4ull == std::max(A<unsigned long long>::a, 4ull) );
  50 #endif
  51
  52   VERIFY( short(3) == std::max(A<short>::a, short(2)) );
  53   VERIFY( short(4) == std::max(A<short>::a, short(4)) );
  54
  55   VERIFY( (unsigned short)3 == std::max(A<unsigned short>::a, (unsigned short)2) );
  56   VERIFY( (unsigned short)4 == std::max(A<unsigned short>::a, (unsigned short)4) );
  57
  58   VERIFY( (char)3 == std::max(A<char>::a, (char)2) );
  59   VERIFY( (char)4 == std::max(A<char>::a, (char)4) );
  60
  61   VERIFY( (signed char)3 == std::max(A<signed char>::a, (signed char)2) );
  62   VERIFY( (signed char)4 == std::max(A<signed char>::a, (signed char)4) );
  63
  64   VERIFY( (unsigned char)3 == std::max(A<unsigned char>::a, (unsigned char)2) );
  65   VERIFY( (unsigned char)4 == std::max(A<unsigned char>::a, (unsigned char)4) );
  66
  67   VERIFY( (wchar_t)3 == std::max(A<wchar_t>::a, (wchar_t)2) );
  68   VERIFY( (wchar_t)4 == std::max(A<wchar_t>::a, (wchar_t)4) );
  69 }
  70
  71 int main()
  72 {
  73   test02();
  74   return 0;
  75 }