icon Top 9 categories map      RocketAware > Perl >

How do I convert bits into ints?

Tips: Browse or Search all pages for efficient awareness of Perl functions, operators, and FAQs.


Search Perl pages


By activity
Professions, Sciences, Humanities, Business, ...

User Interface
Text-based, GUI, Audio, Video, Keyboards, Mouse, Images,...

Text Strings
Conversions, tests, processing, manipulation,...

Integer, Floating point, Matrix, Statistics, Boolean, ...

Algorithms, Memory, Process control, Debugging, ...

Stored Data
Data storage, Integrity, Encryption, Compression, ...

Networks, protocols, Interprocess, Remote, Client Server, ...

Hard World
Timing, Calendar and Clock, Audio, Video, Printer, Controls...

File System
Management, Filtering, File & Directory access, Viewers, ...


How do I convert bits into ints?

To turn a string of 1s and 0s like '10110110' into a scalar containing its binary value, use the pack() function (documented in pack):

    $decimal = pack('B8', '10110110');

Here's an example of going the other way:

    $binary_string = join('', unpack('B*', "\x29"));

Source: Perl FAQ: Data Manipulation
Copyright: Copyright (c) 1997 Tom Christiansen and Nathan Torkington.
Next: How do I multiply matrices?

Previous: Does perl have a round function? What about ceil() and floor()?

(Corrections, notes, and links courtesy of RocketAware.com)

[Overview Topics]

Up to: String-Integer-String conversions

Rapid-Links: Search | About | Comments | Submit Path: RocketAware > Perl > perlfaq4/How_do_I_convert_bits_into_ints_.htm
RocketAware.com is a service of Mib Software
Copyright 2000, Forrest J. Cavalier III. All Rights Reserved.
We welcome submissions and comments