random number function

[cplusplusn00b]

So Im working on a project and it calls for a random number of items in a linked list, accessing these functions according to a timeline, then removing or adding objects in the linked list based on certain conditions. Im having a bit of a brain "fart" when it comes to using the random number algorithm

rand() % 100 keeps giving me the number 41 and I can't seem to find out why. Any ideas?

[wolfgang]

You need to seed it with srand() and time()

The syntax is:

#include <cstdlib>
#include <ctime>

int main()
{
   std::srand(unsigned( std::time(0) ));

// rest of code.
}

You only should seed once at the beginning of main.

[cplusplusn00b]

ah much better, thank you. Now for my next question, the assignment calls for arguments based on the random number it picked, how do I call upon this number later in the code for while/if/for statements? Also, is it possible to do multiple random numbers?

[wolfgang]

Assign the value from rand() to a integer variable.
int myInt = rand();
The variable will hold that random number throughout the code (as long as you don't reassign).

For multiple values, use a loop and an array of integers (or the same one but call rand() at a later time.)

int array[5];
for (int i = 0; i < 5; ++i)
   array[i] = rand();

//OR

int val = rand();
// MORE CODE HERE
// Some time later
val = rand();

[cplusplusn00b]

excellent, I think I got it from here. thank you for your help!