| 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_linear_distribution |
| 13 | |
| 14 | // explicit piecewise_linear_distribution(const param_type& parm); |
| 15 | |
| 16 | #include <random> |
| 17 | |
| 18 | #include <cassert> |
| 19 | #include <vector> |
| 20 | |
| 21 | #include "test_macros.h" |
| 22 | |
| 23 | int main(int, char**) |
| 24 | { |
| 25 | { |
| 26 | typedef std::piecewise_linear_distribution<> D; |
| 27 | typedef D::param_type P; |
| 28 | double b[] = {10, 14, 16, 17}; |
| 29 | double p[] = {25, 62.5, 12.5, 0}; |
| 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() == 4); |
| 40 | assert(dn[0] == 25/256.25); |
| 41 | assert(dn[1] == 62.5/256.25); |
| 42 | assert(dn[2] == 12.5/256.25); |
| 43 | assert(dn[3] == 0); |
| 44 | } |
| 45 | |
| 46 | return 0; |
| 47 | } |
| 48 | |