RandomNumberGenerator.cpp
5a106c74da4fmaster

RandomNumberGenerator.cpp
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			#include "RandomNumberGenerator.hpp"


			std::mt19937& getRandomGenerator(std::string seed)
			{
			// initialise the generator once and for all
			static bool initialised = false ;
			static std::mt19937 generator ;

			// seeds the generator once and for all
			if(not initialised)
			{ if(seed == std::string(""))
			{ std::random_device rd ;
			generator.seed(rd()) ;
			}
			else
			{ std::seed_seq seed_sequence(seed.begin(),seed.end()) ;
			generator.seed(seed_sequence) ;
			}
			initialised = true ;
			}
			return generator ;
			}