1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // <random>
10
11 // template<class _IntType = int>
12 // class uniform_int_distribution
13
14 // explicit uniform_int_distribution(IntType a = 0,
15 // IntType b = numeric_limits<IntType>::max()); // before C++20
16 // uniform_int_distribution() : uniform_int_distribution(0) {} // C++20
17 // explicit uniform_int_distribution(IntType a,
18 // IntType b = numeric_limits<IntType>::max()); // C++20
19
20 #include <random>
21
22 #include <cassert>
23 #include <limits>
24
25 #include "test_macros.h"
26 #if TEST_STD_VER >= 11
27 #include "make_implicit.h"
28 #include "test_convertible.h"
29 #endif
30
31 template <class T>
test_implicit()32 void test_implicit() {
33 #if TEST_STD_VER >= 11
34 typedef std::uniform_int_distribution<> D;
35 static_assert(test_convertible<D>(), "");
36 assert(D(0) == make_implicit<D>());
37 static_assert(!test_convertible<D, T>(), "");
38 static_assert(!test_convertible<D, T, T>(), "");
39 #endif
40 }
41
main(int,char **)42 int main(int, char**)
43 {
44 {
45 typedef std::uniform_int_distribution<> D;
46 D d;
47 assert(d.a() == 0);
48 assert(d.b() == std::numeric_limits<int>::max());
49 }
50 {
51 typedef std::uniform_int_distribution<> D;
52 D d(-6);
53 assert(d.a() == -6);
54 assert(d.b() == std::numeric_limits<int>::max());
55 }
56 {
57 typedef std::uniform_int_distribution<> D;
58 D d(-6, 106);
59 assert(d.a() == -6);
60 assert(d.b() == 106);
61 }
62
63 test_implicit<int>();
64 test_implicit<long>();
65
66 return 0;
67 }
68