AlmightySnoo , 7 months ago to programmer_humor in ifn't

reminds me of #ifndef instead of #if !defined(…)

lobsticle , 8 months ago to programmerhumor in advanced

Very disappointing not to see an #if 0 (my personal go-to for decades) in this meme. 😞

Magister , 8 months ago to programmerhumor in advanced

this is what I’m doing too, so at least it’s not compiled and better than a /* */ as you can keep all the code intact in your #if 0

AlmightySnoo , 8 months ago to programmerhumor in advanced

A simple if (false) will get optimized out by any modern C or C++ compiler with optimizations on, but the problem is that the compiler will still parse and spend time on what’s inside the if-block and it has to be legal code, whereas with the #if 0 trick the whole thing gets yeeted away by the preprocessor before even the compiler gets to look at it regardless of whether that block contains errors or not, it’s literally just a string manipulation.

Duralf , 8 months ago to programmerhumor in advanced

I think you missed the whole point of my comment 😂. Regardless, the time spent compiling a small snippet of code is completely negligible. In the end, both #if 0 and if (false) have their complimentary uses.