HOW DOES ONE USE THE SRAND AND RAND() FUNCTIONS

[ankoump]

I am trying to write a function which selects a value say between 2 and 10 randomly after each run but i cannot understand how to use the Srand function and rand() function.Please Help

 

[abing]

using rand:
Do this Once only:
LARGE_INTEGER gint;
QueryPerformanceCounter(&gint); //
srand(gint.LowPart);

Do this every time you need a random number 2..10
int p = (rand() % 9) + 2 ;

 

[Leibnitz]

you can also try this:

#include<stdilb.h>
#include<time.h>
....
..
int number;
srand((unsigned)time( NULL ));
number = ( rand() % 9 ) + 2;