Every now and then I remember that C has function

Question

Every now and then I remember that C has function

pointers and I just wonder why. It’s like the least ergonomic language feature I think I’ve ever seen, and never once have I seen them used without it feeling like a super alien kludge. I’d use flag bit packing bullshit too if function pointers were the option I had for injecting one function into another.

And like they’re this obnoxious to use and yet they have to be a designed feature right? It’s not obvious that you should be able to address a function, and there’s specific syntax for it, so someone must have sat down at some point and said “yes, this is how function pointers should work”

#english #programming

0

05.10.2024

10 ответов

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demon with L

callbacks ig?

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1 месяц назад

demon with L

Thomas
Why is it unergonomic? And why is it unobvious th...

i understand the hate for asterisks, assembly uses square brackets for pointers and honestly its way easier to comprehend visually at first

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1 месяц назад

demon with L

Thomas
Why is it unergonomic? And why is it unobvious th...

im not a c dev but i think that's the only way to use callbacks, right?

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1 месяц назад

Sofia: Animo Estingi

demon with L
im not a c dev but i think that's the only way to ...

Well a callback must be passed as an argument

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1 месяц назад

Thomas

demon with L
im not a c dev but i think that's the only way to ...

I can It's the only runtime way anyway

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1 месяц назад

Lanny Автор вопроса

Thomas
Why is it unergonomic? And why is it unobvious th...

The syntax is p funky imo, I mean you need something but why the extra parens? Why the asterisk on the identifier and not after the arg list? That’s mostly a taste thing but it does feel kludgy compared most the rest of the language and it’s something I always have to look up. More substantially, you can’t dereference a function pointer and expect anything meaningful to result, so the most fundamental operation of a pointer is basically unused. Pointer arithmetic doesn’t really work either, since depending on architecture a function pointer is not necessarily in the same address space as data. So I guess my complaint is that a function pointer is basically not a pointer, imo defining an opaque func_t or something and an apply function or built in would have been preferable

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1 месяц назад

trev

Lanny
The syntax is p funky imo, I mean you need somethi...

You'd love learning about execution tokens in Forth

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1 месяц назад

Thomas

Lanny
The syntax is p funky imo, I mean you need somethi...

Syntax stuff I was expecting, but the pointer operation stuff makes sense too

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1 месяц назад