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 uniform_real_distribution
13
14// explicit uniform_real_distribution(RealType a = 0.0,
15// RealType b = 1.0); // before C++20
16// uniform_real_distribution() : uniform_real_distribution(0.0) {} // C++20
17// explicit uniform_real_distribution(RealType a, RealType b = 1.0); // C++20
18
19#include <random>
20#include <cassert>
21
22#include "test_macros.h"
23#if TEST_STD_VER >= 11
24#include "make_implicit.h"
25#include "test_convertible.h"
26#endif
27
28template <class T>
29void test_implicit() {
30#if TEST_STD_VER >= 11
31 typedef std::uniform_real_distribution<T> D;
32 static_assert(test_convertible<D>(), "");
33 assert(D(0) == make_implicit<D>());
34 static_assert(!test_convertible<D, T>(), "");
35 static_assert(!test_convertible<D, T, T>(), "");
36#endif
37}
38
39int main(int, char**)
40{
41 {
42 typedef std::uniform_real_distribution<> D;
43 D d;
44 assert(d.a() == 0.0);
45 assert(d.b() == 1.0);
46 }
47 {
48 typedef std::uniform_real_distribution<> D;
49 D d(-6.5);
50 assert(d.a() == -6.5);
51 assert(d.b() == 1.0);
52 }
53 {
54 typedef std::uniform_real_distribution<> D;
55 D d(-6.9, 106.1);
56 assert(d.a() == -6.9);
57 assert(d.b() == 106.1);
58 }
59
60 test_implicit<float>();
61 test_implicit<double>();
62
63 return 0;
64}
65

source code of libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.real/ctor_real_real.pass.cpp