catch2/include/internal/catch_random_number_generator.cpp

/*
 *  Created by Martin on 30/08/2017.
 *
 *  Distributed under the Boost Software License, Version 1.0. (See accompanying
 *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 */

#include "catch_random_number_generator.h"
#include "catch_context.h"
#include "catch_interfaces_config.h"

#include <cstdlib>

namespace Catch {

    void seedRng( IConfig const& config ) {
        if( config.rngSeed() != 0 )
            std::srand( config.rngSeed() );
    }
    unsigned int rngSeed() {
        return getCurrentContext().getConfig()->rngSeed();
    }

    RandomNumberGenerator::result_type RandomNumberGenerator::operator()( result_type n ) const {
        return std::rand() % n;
    }
    RandomNumberGenerator::result_type RandomNumberGenerator::operator()() const {
        return std::rand() % max();
    }

}