libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.exp/max.pass.cpp

   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 exponential_distribution
  13
  14 // result_type max() const;
  15
  16 #include <random>
  17
  18 #include <cassert>
  19 #include <limits>
  20
  21 #include "test_macros.h"
  22
  23 int main(int, char**)
  24 {
  25     {
  26         typedef std::exponential_distribution<> D;
  27         D d(.25);
  28         D::result_type m = d.max();
  29         assert(m == std::numeric_limits<D::result_type>::infinity());
  30     }
  31
  32   return 0;
  33 }