Programmer Humor

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The temptation is always there (lemmy.world)

submitted 2 years ago by Sgt_choke_n_stroke@lemmy.world to c/programmer_humor@programming.dev

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[–] SquishyPandaDev@yiffit.net 46 points 2 years ago (2 children)

Obligatory, mutable global variables are evil.

[–] QuazarOmega@lemy.lol 10 points 2 years ago (1 children)

As opposed to immutable variables

*confused screaming*

[–] yiliu@informis.land 5 points 2 years ago (1 children)

Or mutable constants...

[–] Eufalconimorph@discuss.tchncs.de 3 points 2 years ago* (last edited 2 years ago)

int const golden = 1.618;
int* non_constant = (int*)&amp;golden;
golden = 1.61803399;

Casts are totally not a danger that should require a comment explaining safety…

[–] Eufalconimorph@discuss.tchncs.de 2 points 2 years ago

And more generally mutable aliasing references of any sort are evil. Doesn't mean they're not useful, just that you need magic protection spells (mutexes, semaphores, fancy lock-free algorithms, atomics, etc) to use them safely. Skip the spell or use she wrong one, and the demon escapes and destroys all you hold dear.