Random.cpp

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/*
 * This file is a part of the Biology project by eons LLC.
 * Biology (aka Develop Biology) is a framework for approaching software
 * development from a natural sciences perspective.
 *
 * Copyright (C) 2021 Séon O'Shannon & eons LLC
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#include "bio/common/Random.h"
 
#if BIO_CPP_VERSION >= 11
    #include <random>
#endif
 
namespace bio {
 
#if BIO_CPP_VERSION >= 11
static std::random_device rd;
static std::mt19937 gen(rd());
#endif
 
float random::NormalFloat(
    float mean,
    float standardDeviation
)
{
    #if BIO_CPP_VERSION >= 11
    std::normal_distribution<float> dist
        {
            mean,
            standardDeviation
        };
    return dist(gen);
    #else
    return 0;
    #endif
}
 
float random::UniformFloat(
    float min,
    float max
)
{
    #if BIO_CPP_VERSION >= 11
    std::uniform_real_distribution<float> dist(
        min,
        max
    );
    return dist(gen);
    #else
    return 0;
    #endif
}
 
} //bio namespace