libstdc++-v3/testsuite/26_numerics/random/subtract_with_carry_engine/cons/default.cc

   1 // { dg-do run { target c++11 } }
   2 // { dg-require-cstdint "" }
   3 //
   4 // 2008-11-24  Edward M. Smith-Rowland <3dw4rd@verizon.net>
   5 //
   6 // Copyright (C) 2008-2024 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13 //
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18 //
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 #include <random>
  24 #include <testsuite_hooks.h>
  25
  26 void
  27 test01()
  28 {
  29   std::subtract_with_carry_engine<unsigned long, 24, 10, 24> x;
  30   VERIFY( x.min() == 0 );
  31   VERIFY( x.max() == ((1UL << 24) - 1) );
  32   VERIFY( x() == 15039276 );
  33 }
  34
  35 int main()
  36 {
  37   test01();
  38   return 0;
  39 }