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 negative_binomial_distribution
13
14 // explicit negative_binomial_distribution(IntType k = 1, double p = 0.5); // before C++20
15 // negative_binomial_distribution() : negative_binomial_distribution(1) {} // C++20
16 // explicit negative_binomial_distribution(IntType k, double p = 0.5); // C++20
17
18 #include <random>
19 #include <cassert>
20
21 #include "test_macros.h"
22 #if TEST_STD_VER >= 11
23 #include "make_implicit.h"
24 #include "test_convertible.h"
25 #endif
26
27 template <class T>
test_implicit()28 void test_implicit() {
29 #if TEST_STD_VER >= 11
30 typedef std::negative_binomial_distribution<T> D;
31 static_assert(test_convertible<D>(), "");
32 assert(D(1) == make_implicit<D>());
33 static_assert(!test_convertible<D, T>(), "");
34 static_assert(!test_convertible<D, T, double>(), "");
35 #endif
36 }
37
main(int,char **)38 int main(int, char**)
39 {
40 {
41 typedef std::negative_binomial_distribution<> D;
42 D d;
43 assert(d.k() == 1);
44 assert(d.p() == 0.5);
45 }
46 {
47 typedef std::negative_binomial_distribution<> D;
48 D d(3);
49 assert(d.k() == 3);
50 assert(d.p() == 0.5);
51 }
52 {
53 typedef std::negative_binomial_distribution<> D;
54 D d(3, 0.75);
55 assert(d.k() == 3);
56 assert(d.p() == 0.75);
57 }
58
59 test_implicit<int>();
60 test_implicit<long>();
61
62 return 0;
63 }
64