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better random # theory?

 
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better random # theory?
marla
post 20 Nov, 2005 - 02:45 PM
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right now for random # generation i am using:

CODE

int myRandom(void)
{
    srand (time(NULL));
    return 1 + (rand()%255);
}


however, when the function is being used to rapidly insert random numbers into a string, the numbers are incremental or the same even. is there a better method for "MORE RANDOM" random #'s?
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Dark_Nexus
post 20 Nov, 2005 - 02:59 PM
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or something bad...real bad.

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I believe the problem occurs when you seed the randon number using srand(...) everytime; you should only need to seed the number once.
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Amadeus
post 20 Nov, 2005 - 06:43 PM
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g++ -o drink whiskey.cpp

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Nexus is correct (as always!)...you mention that you are using tis for rapid generation, so likely the function is being called one after another...the random generator is seeded with virtually the same time value each pass, used once, then reseeded. Seeding one time in your main function, then generating the random number in your function should provide the results you are looking for.
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