# Example: rand

## Example 1

The following example generates a random number restricted to a specific zero-based range using the mod (%) operator.

//srand is called before rand srand(time(NULL));

// Generate a random number from 0-99

lr_output_message("A number between 0 and 99: %d\n",rand() % 100);

Example:Output:

Action.c(7): A number between 0 and 99: 72

## Example 2

The following example generates a random number, rNum, between 20 and 29 using the mod (%) operator and addition.

int rNum;

//srand is called before rand

srand(time(NULL));

/* The order of evaluation is first rand(), then the modulus, then the addition. The command below is equivalent to :

rNum =rand() % 10;

rNum is now a number between 0-9

rNum += 20;

rNum is now between 20 and 29

*/

rNum=rand() % 10 + 20;