libstdc++-v3/testsuite/tr1/3_function_objects/bind/nested.cc

   1 // 2005-03-20 Douglas Gregor <doug.gregor -at- gmail.com>
   2 //
   3 // Copyright (C) 2005 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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 3.6 function object binders
  22 #include <tr1/functional>
  23 #include <testsuite_hooks.h>
  24 #include <testsuite_tr1.h>
  25
  26 using namespace __gnu_test;
  27
  28 bool test __attribute__((unused)) = true;
  29
  30 // Operations on empty function<> objects
  31 void test01()
  32 {
  33   using namespace std::tr1::placeholders;
  34
  35   int five = 5;
  36   int seven = 7;
  37   VERIFY( std::tr1::bind(std::multiplies<int>(), _1, std::tr1::bind(std::minus<int>(), 6, _2))(five, seven) == -5 );
  38   VERIFY( std::tr1::bind(std::multiplies<int>(), _1, std::tr1::bind(std::minus<int>(), 6, _2))(seven, five) == 7 );
  39 }
  40
  41 int main()
  42 {
  43   test01();
  44   return 0;
  45 }