libstdc++-v3/testsuite/25_algorithms/clamp/requirements/explicit_instantiation/1.cc

   1 // { dg-options "-std=gnu++17" }
   2 // { dg-do compile }
   3
   4 // Copyright (C) 2016 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <algorithm>
  22 #include <functional>
  23 #include <testsuite_api.h>
  24
  25 #ifndef __cpp_lib_clamp
  26 # error "Feature-test macro for clamp missing"
  27 #elif __cpp_lib_clamp != 201603
  28 # error "Feature-test macro for clamp has wrong value"
  29 #endif
  30
  31 namespace std
  32 {
  33   using __gnu_test::NonDefaultConstructible;
  34
  35   typedef NonDefaultConstructible       value_type;
  36   typedef value_type*                   iterator_type;
  37   typedef std::less<value_type>         compare_type;
  38
  39   template const value_type& clamp(const value_type&,
  40                                    const value_type&, const value_type&);
  41   template const value_type& clamp(const value_type&,
  42                                    const value_type&, const value_type&,
  43                                    compare_type);
  44 }