CODEWITHSUNDEEP
c
Rozrewolwerowany rewolwer
Rozrewolwerowany rewolwer

Reputation: 313

C cast funtion that takes MyType* to funtion that takes void*

I have something like this:

void vectorDestroyWithItems(Vector *vector, void (*destroyItemFunc)(void*));
void myTypeDestroy(MyType *obj);

and I want to call it in this way:

vectorDestroyWithItems(vector, myTypeDestroy);

But I get error:

argument of type "void (*)(MyType MyType)" is incompatible with parameter of type "void ()(void *)

Why is it illegal?

Upvotes: 0

Views: 27

Answers (1)

Krishna Kanth Yenumula
Krishna Kanth Yenumula

Reputation: 2567

void (*destroyItemFunc)(void*)---> Function pointer, which takes void* as argument and do not return any value.

But ,void myTypeDestroy(MyType *obj); , here the argument is of type MyType *, not void*. This is the reason for error.

Solution : Use this
void vectorDestroyWithItems(Vector *vector, void (*destroyItemFunc)(MyType *));

Upvotes: 2

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