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1 | // { dg-options "-std=c++0x" } |
2 | // | |
3 | // 2008-11-24 Edward M. Smith-Rowland <3dw4rd@verizon.net> | |
4 | // | |
5 | // Copyright (C) 2008 Free Software Foundation, Inc. | |
6 | // | |
7 | // This file is part of the GNU ISO C++ Library. This library is free | |
8 | // software; you can redistribute it and/or modify it under the | |
9 | // terms of the GNU General Public License as published by the | |
10 | // Free Software Foundation; either version 2, or (at your option) | |
11 | // any later version. | |
12 | // | |
13 | // This library is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | // | |
18 | // You should have received a copy of the GNU General Public License along | |
19 | // with this library; see the file COPYING. If not, write to the Free | |
20 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, | |
21 | // USA. | |
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 | ||
30 | void | |
31 | test01() | |
32 | { | |
33 | bool test __attribute__((unused)) = true; | |
34 | ||
35 | std::stringstream str; | |
36 | std::independent_bits_engine | |
37 | <std::subtract_with_carry_engine<uint_fast64_t, 48, 5, 12>, | |
38 | 48, unsigned long> u, v; | |
39 | ||
40 | u(); // advance | |
41 | str << u; | |
42 | ||
43 | VERIFY( !(u == v) ); | |
44 | ||
45 | str >> v; | |
46 | VERIFY( u == v ); | |
47 | } | |
48 | ||
49 | int main() | |
50 | { | |
51 | test01(); | |
52 | return 0; | |
53 | } |