Question

I have the following code:

typedef unsigned char some_type[6];

int main() {
        some_type some_var1;
        some_type some_var2;
        some_var1 = some_var2;
        return 0;
}

And when i try to compile it, I get the following error message:

incompatible types when assigning to type 'some_type' from type 'unsigned char *'

Why is this? Both variables are exactly the same type? What can I do to make it work? I can’t change the typedef, as it is part of an API I am using.

Answer 1

You can’t assign arrays to each other like that. If these are strings, use strcpy:

strcpy(some_var1, some_var2);

If not, use memcpy:

memcpy(&some_var1, &some_var2, sizeof (some_type));