perl function hex

The hex function in Perl is used to convert a hexadecimal string to its corresponding decimal value. It takes a string argument representing a hexadecimal number and returns an integer value.

Here's an example that demonstrates how to use hex:

#!/usr/bin/perl

use strict;
use warnings;

# Define a hexadecimal string
my $hex_string = "0xFF";

# Use hex to convert the string to a decimal value
my $decimal_value = hex($hex_string);

# Print the decimal value
print "Decimal value: $decimal_value\n";

In this example, we start by defining a hexadecimal string 0xFF. We then use the hex function to convert the string to its corresponding decimal value, which is 255. Finally, we print the decimal value to the console.

Note that the hex function can also be used to convert a hexadecimal string to a binary string or to an octal string by specifying the appropriate base as a second argument.