this post was submitted on 04 Feb 2025

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184

The infamous "if loop" actually exists (discuss.tchncs.de)

submitted 4 months ago* (last edited 4 months ago) by kyub@discuss.tchncs.de to c/programmer_humor@programming.dev

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[–] LeFrog@discuss.tchncs.de 25 points 4 months ago (10 children)

ELI5 plz

[–] aMockTie@lemmy.world 46 points 4 months ago (6 children)

Statements that start with # in C/C++ are known as preprocessor directives, that is, they are executed before compilation begins. OP has used a #define which will replace any instance of A (IF(x)) with B (while (x)) in the code.

So the IF statement is really just a while statement.

[–] Kacarott@aussie.zone 17 points 4 months ago (5 children)

But what is it in reference to? What's the "infamous if loop"?

[–] kyub@discuss.tchncs.de 12 points 4 months ago

"Infamous" just refers to newbies who sometimes call if statements "if loops". I've heard this quite a bit.

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