How best can I check if an integer is even or odd in C? I considered how I'd do this in JAVA, but I couldn't come up with an answer either. Thanks.

For my server app, I need to check if an ip address is in our blacklist. What is the most efficient way of comparing ip addresses? Would converting the IP address to integer and …

Why are flat text files the state of the art for representing source code? Sure - the preprocessor and compiler need to see a flat file representation of the file, but that's easi …

Does the compiler optimize out any multiplications by 1? That is, consider: int a = 1; int b = 5 * a; Will the expression 5 * a be optimized into just 5? If not, will it if a is …

In bash, I usually end up using a combination of find | xargs to make modifications for files, such as fixing permissions. However, if the file or folder has spaces in its name, it …

What is a good non-programming question to ask a candidate during a job interview? I'll post my two favorites below, but I'd like to hear others. Clarification: By "non-programm …

I always liked to ask myself "what's the first principle(s) of this?" after I learned the basic stuff of something (e.g. programming). It's an inspiring question, IMO, that can for …

I have in a function that takes a struct, and I'm trying to store its variables in an array, but I get this when I run gcc -Wall -ansi -pedantic-errors -Werror int detect_prm(Para …

I'm personally an advocate of the ternary operator: () ? : ; I do realize that it has its place, but I have come across many programmers that are completely against ever using it …

For example, sometimes when I try to start Firefox it says a Firefox process is already running. So I have to do this: jeremy@jeremy-desktop:~$ ps aux | grep firefox jeremy 745 …