Programmer Humor

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I love new features (lemmy.zip)

submitted 1 week ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 1 week ago (1 children)

Yes, you can do crazy shit if you try hard enough, but every reasonable programmer would access foo->child->b als foo->child->b and not via that crazy LISPy expression.

By question was: Why would you have a pointer to a memory address that itself only holds a pointer somewhere else?

So far the only reasonable explanation is from @[email protected]:

arrays of function pointers

pass by reference of a pointer

[–] [email protected] 1 points 1 week ago

I'm more talking about theory than practical.

I've not developed anything in C/C++, so I don't know practical uses for a double pointer, aside from multidimensional arrays, or arrays of pointers

My point was that, conceptually, pointers to pointers is how most complex data structures work. Even if the C representation of said code doesn't have a int** somewhere