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 RealType = double>
12// class weibull_distribution
13
14// explicit weibull_distribution(RealType a = 1.0, RealType b = 1.0); // before C++20
15// weibull_distribution() : weibull_distribution(1.0) {} // C++20
16// explicit weibull_distribution(RealType a, RealType b = 1.0); // 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
27template <class T>
28void test_implicit() {
29#if TEST_STD_VER >= 11
30 typedef std::weibull_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, T>(), "");
35#endif
36}
37
38int main(int, char**)
39{
40 {
41 typedef std::weibull_distribution<> D;
42 D d;
43 assert(d.a() == 1);
44 assert(d.b() == 1);
45 }
46 {
47 typedef std::weibull_distribution<> D;
48 D d(14.5);
49 assert(d.a() == 14.5);
50 assert(d.b() == 1);
51 }
52 {
53 typedef std::weibull_distribution<> D;
54 D d(14.5, 5.25);
55 assert(d.a() == 14.5);
56 assert(d.b() == 5.25);
57 }
58
59 test_implicit<float>();
60 test_implicit<double>();
61
62 return 0;
63}
64

source code of libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.weibull/ctor_double_double.pass.cpp