adler32_data¶

Returns the checksum as raw octets.

 my $checksum_raw = adler32_data('data string');
 #or
 my $checksum_raw = adler32_data('any data', 'more data', 'even more data');

adler32_data_hex¶

Returns checksum as a hexadecimal string.

 my $checksum_hex = adler32_data_hex('data string');
 #or
 my $checksum_hex = adler32_data_hex('any data', 'more data', 'even more data');

adler32_data_int¶

Returns checksum as unsigned 32-bit integer.

 my $checksum_int = adler32_data_int('data string');
 #or
 my $checksum_int = adler32_data_int('any data', 'more data', 'even more data');

Each "adler32_data*" function converts its data arguments to bytes using Perl's usual scalar stringification. Defined scalars, including numbers and string-overloaded objects, are accepted. "undef" is treated as an empty string and may emit Perl's usual "uninitialized value" warning.

adler32_file¶

Returns the checksum as raw octets.

 my $checksum_raw = adler32_file('filename.dat');
 #or
 my $filehandle = ...; # existing binary-mode filehandle
 my $checksum_raw = adler32_file($filehandle);

adler32_file_hex¶

Returns checksum as a hexadecimal string.

 my $checksum_hex = adler32_file_hex('filename.dat');
 #or
 my $filehandle = ...; # existing binary-mode filehandle
 my $checksum_hex = adler32_file_hex($filehandle);

adler32_file_int¶

Returns checksum as unsigned 32-bit integer.

 my $checksum_int = adler32_file_int('filename.dat');
 #or
 my $filehandle = ...; # existing binary-mode filehandle
 my $checksum_int = adler32_file_int($filehandle);

new¶

Constructor, returns a reference to the checksum object.

 my $d = Crypt::Checksum::Adler32->new;

clone¶

Creates a copy of the checksum object state and returns a reference to the copy.

 $d->clone();

reset¶

Reinitialize the checksum object state and returns a reference to the checksum object.

 $d->reset();

add¶

All arguments are appended to the message we calculate checksum for. The return value is the checksum object itself.

Each argument is converted to bytes using Perl's usual scalar stringification. Defined scalars, including numbers and string-overloaded objects, are accepted. "undef" is treated as an empty string and may emit Perl's usual "uninitialized value" warning.

 $d->add('any data');
 #or
 $d->add('any data', 'more data', 'even more data');

addfile¶

The content of the file (or filehandle) is appended to the message we calculate checksum for. The return value is the checksum object itself.

 $d->addfile('filename.dat');
 #or
 my $filehandle = ...; # existing binary-mode filehandle
 $d->addfile($filehandle);

Note: The filehandle must be in binary mode before you pass it to addfile().

digest¶

Returns the binary checksum (raw bytes). This method does not alter the object state, so you can call it repeatedly and continue with add() or addfile() afterwards.

 my $result_raw = $d->digest();

hexdigest¶

Returns the checksum encoded as a hexadecimal string. Like digest(), this method does not alter the object state.

 my $result_hex = $d->hexdigest();

intdigest¶

Returns the checksum encoded as unsigned 32-bit integer. Like digest(), this method does not alter the object state.

 my $result_int = $d->intdigest();