| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // <random> |
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| 10 | |
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| 11 | // template<class RealType = double> |
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| 12 | // class lognormal_distribution |
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| 13 | |
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| 14 | // template<class _URNG> result_type operator()(_URNG& g, const param_type& parm); |
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| 15 | // https://llvm.org/PR52906 |
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| 16 | |
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| 17 | #include <random> |
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| 18 | #include <cassert> |
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| 19 | |
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| 20 | #include "test_macros.h" |
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| 21 | |
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| 22 | int main(int, char**) |
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| 23 | { |
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| 24 | typedef std::lognormal_distribution<> D; |
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| 25 | typedef D::param_type P; |
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| 26 | typedef std::mt19937 G; |
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| 27 | G g; |
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| 28 | D d; |
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| 29 | |
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| 30 | const P p1 = d.param(); |
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| 31 | const P p2 = d.param(); |
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| 32 | assert(p1 == p2); |
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| 33 | (void) d(g, p1); // This line must not modify p1. |
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| 34 | assert(p1 == p2); |
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| 35 | LIBCPP_ASSERT(p1 == d.param()); |
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| 36 | |
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| 37 | return 0; |
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| 38 | } |
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| 39 | |
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