this post was submitted on 16 Jun 2023
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C Programming for Low Level Hardware

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

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[–] [email protected] 1 points 2 years ago (1 children)

But isn't it bad practice? Like, isn't it seen evil when you often use them? Especially because they are hard to debug? (I can't watch the video currently)

[–] a2800276 3 points 2 years 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 2 years 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 2 years 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...