libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.poisson/param_assign.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 IntType = int>
  12 // class poisson_distribution
  13 // {
  14 //     class param_type;
  15
  16 #include <random>
  17 #include <limits>
  18 #include <cassert>
  19
  20 #include "test_macros.h"
  21
  22 int main(int, char**)
  23 {
  24     {
  25         typedef std::poisson_distribution<> D;
  26         typedef D::param_type param_type;
  27         param_type p0(.7);
  28         param_type p;
  29         p = p0;
  30         assert(p.mean() == .7);
  31     }
  32
  33   return 0;
  34 }