1// { dg-options "-std=c++0x" } 2// { dg-require-cstdint "" } 3// 4// 2008-11-24 Edward M. Smith-Rowland <3dw4rd@verizon.net> 5// 6// Copyright (C) 2008, 2009 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// 26.4.4.1 class template discard_block_engine [rand.adapt.disc] 24// 26.4.2.3 concept RandomNumberEngineAdaptor [rand.concept.adapt] 25 26#include <random> 27#include <sstream> 28#include <testsuite_hooks.h> 29 30void 31test01() 32{ 33 bool test __attribute__((unused)) = true; 34 35 std::stringstream str; 36 std::discard_block_engine 37 < 38 std::subtract_with_carry_engine<unsigned long, 24, 10, 24>, 39 389, 24 40 > u, v; 41 42 u(); // advance 43 str << u; 44 45 VERIFY( !(u == v) ); 46 47 str >> v; 48 VERIFY( u == v ); 49} 50 51int main() 52{ 53 test01(); 54 return 0; 55} 56