libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/subtract_with_carry/cons/default.cc

   1 // 2006-06-04  Stephen M. Webb <stephen.webb@bregmasoft.com>
   2 //
   3 // Copyright (C) 2006, 2009 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 // 5.1.4.3 class template subtract_with_carry [tr.rand.eng.sub]
  21 // 5.1.1 Table 16 line 1 default ctor
  22
  23 #include <tr1/random>
  24 #include <testsuite_hooks.h>
  25
  26 void
  27 test01()
  28 {
  29   bool test __attribute__((unused)) = true;
  30   using namespace std::tr1;
  31
  32   subtract_with_carry<unsigned long, (1UL << 24), 10, 24> x;
  33   VERIFY( x.min() == 0 );
  34   VERIFY( x.max() == ((1UL << 24) - 1) );
  35   VERIFY( x() == 15039276 );
  36 }
  37
  38 int main()
  39 {
  40   test01();
  41   return 0;
  42 }