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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / tr1 / 5_numerical_facilities / random / subtract_with_carry_01 / cons / gen1.cc
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1// 2006-08-22 Paolo Carlini <pcarlini@suse.de>
2//
3// Copyright (C) 2006 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// 5.1.4.4 class template subtract_with_carry_01 [tr.rand.eng.sub1]
22// 5.1.1 Table 16 line 3 Gen ctor
23
24#include <ctime>
25#include <tr1/random>
26#include <testsuite_hooks.h>
27
28// a not untypical initialization function
29unsigned long
30gen()
31{
32 return std::time(0);
33}
34
35void
36test01()
37{
38 bool test __attribute__((unused)) = true;
39 using namespace std::tr1;
40
41 subtract_with_carry_01<float, 24, 10, 24> x(gen);
42 VERIFY( x.min() == 0.0 );
43 VERIFY( x.max() == 1.0 );
44}
45
46int main()
47{
48 test01();
49 return 0;
50}