llvm-project/libcxx/test/std/numerics/rand/rand.device/entropy.pass.cpp

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C++

//===----------------------------------------------------------------------===//
//
// 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>
// class random_device;
// double entropy() const;
#include <random>
#include <cassert>
int main()
{
std::random_device r;
double e = r.entropy();
((void)e); // Prevent unused warning
}