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The worst thing with C pointers was for me that the asterisk is inexplicably used both to declare a pointer and a COMPLETELY different operation of dereferencin
by jug 1y ago
The worst thing with C pointers was for me that the asterisk is inexplicably used both to declare a pointer and a COMPLETELY different operation of dereferencing a pointer.
I still don't understand this decision. I think it should've been like int^ p = &i; ... or ... int i = *p;
Everything clicked ironically when I went even deeper and studied assembly language. Then following pointers to data vs just reading pointers becomes very clear and explicit.
- sgsjchs 1y ago> I still don't understand this decision. Variable declaration `T v;` means "declare `v` such that expression `v` has type `T`". Variable declaration `T *p` means declare `p` such that the expression `*p` has type `T`". etc.
- kopirgan 1y agoNice explanation!
- tealpod 1y ago> asterisk is inexplicably used both to declare a pointer and a COMPLETELY different operation of dereferencing a pointer. This is the most confusing concept of pointers. I feel this could have been easily avoided with different character like ~ or ^ or other.
- 1718627440 1y agoWhy? In C all the declarations work like that: float * (*foo(int *)) (int); foo is something, that can be called with an 'int *', which results in a pointer to something that can be called with an 'int', which results in something which can be dereferenced, which is a float.