C pointer : array variable

Question

I read this in my book (and many sources on the internet):

The array variable points to the first element in the array.

Answer 1

Look at it this way:

&msg = 0x0012
&msg[0] = 0x0012
&msg[1] = 0x0013

In this case &msg[1] is pointing to msg+1. When you reference &msg or &msg[0] you are referring to the same address of memory because this is where the pointer starts. Incrementing the array variable will increment the pointer by +1 since a char variable is only 1 byte in size.

If you do the same trick with say an integer you will increment the pointer by +4 bytes since an integer is 4 bytes in size.