After searching the net for an hour to find a good random number generator, this is the best I found. From what I understand it works off of time as seconds and minutes change, but I would like to dive in further to understand the purpose of these 5 items...
srand
rand
time
NULL
<ctime>
Code:#include <iostream> #include <ctime> using namespace std; int main() { srand(time(NULL)); cout << rand(); }
Poor thingOriginally Posted by Brian_Jones
After you have read through the article that I linked to below, and have experimented with this a little more, take a look at what is offered by Boost.Random.
That refers to the way that the PRNG is seeded, not the way that the PRNG actually works. The standard library's pseudorandom number generator's algorithm depends on the implementation.
srand is used to seed the PRNG, rand is used to get a random number in the range [0, RAND_MAX], std::time(NULL) is used to get the current time, NULL is a macro for zero, and <ctime> is the standard header for std::time. I suggest that you read Prelude's article on Using rand().
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Thank you!
