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C: Passing array  to function vs. passing a POINTER to the same array

Stephen Kairys
Last Modified: 2012-08-14
Hey everyone,
I'm telling myself the following MUST be OK but have a nagging doubt so I want to be sure. :)

In C:

1. SupposeI have a structure: CUSTOMER
and an array: (Global to my C file)
CUSTOMER  People[100];

2. I then have (local to function in the same C file):
CUSTOMER *PtrPeople = People;

3. Now I have a called functon whose header is:
void ProcessStuff (PEOPLE *ppl)

4. My exis ting code (which someone else wrote) has the following calls:
ProcessStuff(People);  // call #1, using the array
ProcessStuff(PtrPeople); // call #2 using the ptr to the array.

From what I recall, these should be one and the same since I'm dealing with an ARRAY,
but would appreciate either confirmation or correcting me if I'm wrong.

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