Differential D91292 Diff 308912 libcxx/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/ctor_real_real.pass.cpp

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libcxx/test/std/numerics/rand/rand.dis/rand.dist.uni/rand.dist.uni.real/ctor_real_real.pass.cpp

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				//===----------------------------------------------------------------------===//
				//
				// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
				// See https://llvm.org/LICENSE.txt for license information.
				// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
				//
				//===----------------------------------------------------------------------===//

				// <random>

				// template<class RealType = double>
				// class uniform_real_distribution

				// explicit uniform_real_distribution(RealType a = 0.0,
				// RealType b = 1.0); // before C++20
				// uniform_real_distribution() : uniform_real_distribution(0.0) {} // C++20
				// explicit uniform_real_distribution(RealType a, RealType b = 1.0); // C++20

				#include <random>
				#include <cassert>

				#include "test_macros.h"
				#if TEST_STD_VER >= 11
				#include "make_implicit.h"
				#include "test_convertible.h"
				#endif

				template <class T>
				void test_implicit() {
				#if TEST_STD_VER >= 11
				typedef std::uniform_real_distribution<T> D;
				#if TEST_STD_VER > 17
				static_assert(test_convertible<D>(), "");
				assert(D(0) == make_implicit<D>());
				#else
				static_assert(!test_convertible<D>(), "");
				#endif
				static_assert(!test_convertible<D, T>(), "");
				static_assert(!test_convertible<D, T, T>(), "");
				#endif
				}

				int main(int, char**)
				{
				{
				typedef std::uniform_real_distribution<> D;
				D d;
				assert(d.a() == 0.0);
				assert(d.b() == 1.0);
				}
				{
				typedef std::uniform_real_distribution<> D;
				D d(-6.5);
				assert(d.a() == -6.5);
				assert(d.b() == 1.0);
				}
				{
				typedef std::uniform_real_distribution<> D;
				D d(-6.9, 106.1);
				assert(d.a() == -6.9);
				assert(d.b() == 106.1);
				}

				test_implicit<float>();
				test_implicit<double>();

				return 0;
				}