87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/*
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* <Short Description>
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* Copyright (C) 2024 Brett Terpstra
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef LILFBTF5_TEST2_H
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#define LILFBTF5_TEST2_H
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#include <random>
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#include <blt/std/types.h>
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namespace fb
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{
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void test2();
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static constexpr blt::u64 SEED = 691;
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struct random_engine
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{
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private:
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std::mt19937_64 engine{SEED};
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public:
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random_engine() = default;
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void reset(blt::u64 seed = SEED)
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{
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engine = std::mt19937_64{seed};
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}
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auto& get()
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{
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return engine;
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}
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};
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inline random_engine engine;
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enum class type_t
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{
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ADD, SUB, MUL, DIV, VALUE, END
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};
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inline type_t random_type()
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{
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static std::random_device dev;
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static std::uniform_int_distribution dist(0, static_cast<int>(type_t::END) - 1);
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return static_cast<type_t>(dist(engine.get()));
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}
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inline type_t random_type_sub()
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{
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static std::random_device dev;
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static std::uniform_int_distribution dist(0, static_cast<int>(type_t::END) - 2);
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return static_cast<type_t>(dist(engine.get()));
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}
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inline double random_value()
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{
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static std::random_device dev;
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static std::uniform_real_distribution dist(-2.0, 2.0);
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return dist(engine.get());
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}
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inline bool choice()
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{
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static std::random_device dev;
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static std::uniform_int_distribution dist(0, 1);
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return dist(engine.get());
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}
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}
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#endif //LILFBTF5_TEST2_H
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