1
There is no 'printf'
In C, 'main' returns an int. What happens when you don't explicitly return a value, though? C99 provides a return value of 0, but C89... well, that's undefined, my favorite kind of behavior.
Jan Schaumann
This is just another boring personal website. I don't have a Facebook, for obvious reasons. You can find me on Mastodon or LinkedIn (local résumé ). I also have a blog (because who doesn't), as well as, to the great amusement of my children, a distinct German accent.
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Visit netmeister.org → On Hacker News Oct 2019 – Sep 2026
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2
Complexities of e-mail validation logic
Nope, you don't know how to validate an email address. Even if you think you'd get the domain part right, fuggeddabout the local part. Seriously.
3
Time is an illusion, Unix time doubly so
Unix counts time as seconds since the epoch. Seems straight forward. What could possibly go wrong?
4
Software Engineering Laws Everybody Loves to Ignore
Sure, we all pretend to know them, but rarely do we think they apply to us. Your manager certainly doesn't...
5
AI errno(2) values
errno(2) values for the AI age