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Libraries: what they are, how they work, why you need them

Posted 05-11-2018 at 09:37 AM by hazel
Updated 01-16-2020 at 04:50 AM by hazel

All serious software nowadays does most of its work using libraries. The top-level program code is mainly a caller for library functions written by other people, and it is these that actually do most of the heavy lifting. Without libraries, programming would be impossible for anyone but professionally trained coders.

A library is a collection of functions that do a particular set of interrelated jobs: reading and writing a particular media format, doing quad-precision maths, parsing...

hazel

Senior Member

Posted in For newbies

Views 446 Comments 1 hazel is offline

Technological fossils

Posted 04-17-2019 at 12:11 PM by hazel

One of the problems of old age is that nothing looks the way it ought to any more. Take telephones. I have a very clear mental picture of what a telephone ought to look like. It is black, shaped like a truncated pyramid with concave sides and a cradle on the top to hold the receiver. On the front is a circular dial with a chrome-plated surround containing 10 holes. You dialled a number by putting the tip of your index finger into a hole and pulling the dial around clockwise as far as it would go,...

hazel

Senior Member

Posted in Uncategorized

Views 320 Comments 3 hazel is offline

What I discovered about pointers when I was learning C

Posted 07-25-2019 at 06:25 AM by hazel
Updated 07-25-2019 at 08:54 AM by hazel

I first started fiddling about with C when I became a Linux user. I had done some previous hobby programming; like many people back in the 1970's, I started with BASIC, moved on to Fortran and then Pascal, which I particularly liked because of its logical structure.

In all these languages, a variable was simply a named entity that had a type (for example integer) and a value. You did not have to bother about where it was stored. The computer handled that for you. These languages were...

hazel

Senior Member

Posted in Programming

Views 426 Comments 3 hazel is offline

Simple Mass File Renamer & Deleter [Python]

Posted 09-17-2008 at 12:01 PM by ghostdog74

I am so bored today, that i started creating a command line batch file renamer, tested on Linux with Python 2.4.
Some of the simple things it can do is:
1) Change upper case to lower case and vice versa
2) Change file names by pattern substitution
3) Change file names by number sequence
4) Insert pattern in front of files
5) Insert pattern at the end of files.
6) Simple sort by number.
7) Manual revert of changed files.
8) Deletion...

ghostdog74

Senior Member

Posted in Uncategorized

Views 10208 Comments 0 ghostdog74 is offline

Preplogic.com - I like it. Makes me feel smart.

Posted 04-12-2009 at 08:14 AM by jaymarting (The messy world of technology)
Updated 02-15-2010 at 09:55 AM by jaymarting (updated for progress)

Tags 2009, audio, firefox, install, newbie, prep logic, preplogic, preplogic.com, training

About five months ago, I decided to for my CCNA. And I decided to use Preplogic.com to train for it. Preplogic has a fantastic program for networking wannabes (and networking already bes). For those of you only interested in the technology side of things, the CCNA is a decently high level certification from Cisco: Cisco Certified Networking Associate. My career in the networking field has been short for many but lengthy for me. Most of my 4 years have been spent as a Jr Network Admin at a small...

jaymarting

LQ Newbie

Posted in Uncategorized

Views 93480 Comments 46 jaymarting is offline

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