this post was submitted on 16 Jun 2023
2 points (75.0% liked)

C Programming for Low Level Hardware

257 readers
1 users here now

A subreddit dedicated to the C language with an emphasis on microcontrollers and low level hardware. However, all C discussion welcome :)

Related communities:

founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] a2800276 2 points 1 year ago (1 children)

I think it depends, trivial min() and max() style functions are very common and considered acceptable, though I guess you could have been using inline for the last two decades...

The only time I got any serious usage out of preproc functions was writing a driver for an AT-command set cellular modem which involved writing a ton of repetitive code for each AT command.

I think I would prefer this sort of content in wrtten form though, cause I do it so seldom, I always need to look up syntactic specials like 'stringizing' where I even tend to forget the names of the concepts :)

[–] nomadjoanne 1 points 1 year ago (1 children)

Isn't inline technically just a suggestion to the compiler though? It's not necessarily guaranteed to inline it.

[–] a2800276 2 points 1 year ago

Sure. So? If the compiler feels it's more efficient not to inline, who am I to judge? As far as I know there's nothing keeping the compiler from recognizing repetitive code generated by macros and factoring out into a single assembly routine...