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 piecewise_constant_distribution
13
14// explicit piecewise_constant_distribution(const param_type& parm);
15
16#include <random>
17
18#include <cassert>
19#include <vector>
20
21#include "test_macros.h"
22
23int main(int, char**)
24{
25 {
26 typedef std::piecewise_constant_distribution<> D;
27 typedef D::param_type P;
28 double b[] = {10, 14, 16, 17};
29 double p[] = {25, 62.5, 12.5};
30 P pa(b, b+4, p);
31 D d(pa);
32 std::vector<double> iv = d.intervals();
33 assert(iv.size() == 4);
34 assert(iv[0] == 10);
35 assert(iv[1] == 14);
36 assert(iv[2] == 16);
37 assert(iv[3] == 17);
38 std::vector<double> dn = d.densities();
39 assert(dn.size() == 3);
40 assert(dn[0] == .0625);
41 assert(dn[1] == .3125);
42 assert(dn[2] == .125);
43 }
44
45 return 0;
46}
47

source code of libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/ctor_param.pass.cpp