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e63d7e71 | 1 | // { dg-do run { target c++11 } } |
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2 | // { dg-require-cstdint "" } |
3 | // | |
a945c346 | 4 | // Copyright (C) 2014-2024 Free Software Foundation, Inc. |
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5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
9 | // Free Software Foundation; either version 3, or (at your option) | |
10 | // any later version. | |
11 | // | |
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | // | |
17 | // You should have received a copy of the GNU General Public License along | |
18 | // with this library; see the file COPYING3. If not see | |
19 | // <http://www.gnu.org/licenses/>. | |
20 | ||
21 | // Class template uniform_inside_sphere_distribution | |
22 | // 26.5.1.6 Random number distribution requirements [rand.req.dist] | |
23 | ||
24 | #include <ext/random> | |
25 | #include <sstream> | |
26 | #include <testsuite_hooks.h> | |
27 | ||
28 | void | |
29 | test01() | |
30 | { | |
31 | bool test [[gnu::unused]] = true; | |
32 | std::minstd_rand0 rng; | |
33 | ||
34 | __gnu_cxx::uniform_inside_sphere_distribution<3> u3(2.0); | |
35 | ||
36 | for (size_t n = 0; n < 1000; ++n) | |
37 | { | |
38 | auto r = u3(rng); | |
39 | ||
40 | VERIFY (std::abs(r[0]) < 2.0 | |
41 | && std::abs(r[1]) < 2.0 | |
42 | && std::abs(r[2]) < 2.0); | |
43 | } | |
44 | ||
45 | __gnu_cxx::uniform_inside_sphere_distribution<2> u2(4000.0); | |
46 | ||
47 | for (size_t n = 0; n < 1000; ++n) | |
48 | { | |
49 | auto r = u2(rng); | |
50 | ||
51 | VERIFY (std::abs(r[0]) < 4000.0 && std::abs(r[1]) < 4000.0); | |
52 | } | |
53 | } | |
54 | ||
55 | int | |
56 | main() | |
57 | { | |
58 | test01(); | |
59 | return 0; | |
60 | } |