Random number generator for linux
 

i have a Random number generatorfor win32 but when i compiled it and ran it on linux it always gave 0 as the generated number but on windows it gives a differnt number!?
can anyone help?

hi

try to assign and print out as a double or float and use %f instead of %d, it might help. ;)

i tred that it still did not make a differnce

does anyone know of any good randum number generators that if givvena number say 37 would generate a number between 1 and 37??

hi


the main problem of your prog is that you have an overflow!!! Just try something like :





int num;


srand(time(NULL));


return (int) (((double) rand() / (double) RAND_MAX) * (double) limit) + 1;





by

;)

Anything wrong with using this?



srand(time(NULL));
array[i] = rand() % 1001;

Sorry about previous post. I am adapting this from previous code.

Anything wrong with using this?


int num;
srand(time(NULL));
num = rand() % 38;
return num;

Or if you wanted to create a random number from 1 to limit, try this:

int num;
int limit;

srand(time(NULL));

num = (rand() % limit) + 1;

return num;

Dont mean to sound stupid but what does the % do i have looked it up in the book that i have and cant find it? well not used in this way.

The % is called the modulus. It gives you the remainder of dividing two numbers.

Thus, 13 % 10 returns 3. Using this is nice because:

( number % limit ) + 1 always returns a number from 1 through the limit.

OK habiblove,

you're right : modulus seems to be much easier... sorry !


:study: :study: :study:

It is pretty neat. Who said a college education isn't worth anything?

i went to college but din't get all that much out of it

main()
{
printf("I have no idea!\n")
}

*****Colonel Panic*****