catch_random_number_generator.cpp

Go to the documentation of this file.

/*
 *  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"
 
namespace Catch {
 
    std::mt19937& rng() {
        static std::mt19937 s_rng;
        return s_rng;
    }
 
    void seedRng( IConfig const& config ) {
        if( config.rngSeed() != 0 ) {
            std::srand( config.rngSeed() );
            rng().seed( config.rngSeed() );
        }
    }
 
    unsigned int rngSeed() {
        return getCurrentContext().getConfig()->rngSeed();
    }
}