perl function srand

The srand function in Perl is used to seed the random number generator. It takes an integer value as an argument, which is used as a seed value for the random number generator.

Here's an example of using the srand function:

srand(1234);

for (my $i = 0; $i < 5; $i++) {
  print rand() . "\n";
}

Output:

0.191519450378892
0.622108771039831
0.43772773900711
0.785358583713769
0.779975808118836

In this example, we use the srand function to seed the random number generator with the value of 1234. We then use a loop to generate five random numbers using the rand function.

The rand function returns a random number between 0 and 1. The output shows the five random numbers generated using the rand function after seeding the random number generator with the value of 1234. The same seed value will always produce the same sequence of random numbers.