In C, are const variables guaranteed to be distinct in memory?

Question

Speaking of string literals, the C99 standard says (6.4.5.6):

It is unspecified whether these arrays are distinct provided their elements have the appropr

Answer 1

6.4.5/6 says of the arrays corresponding to string literals:

It is unspecified whether these arrays are distinct provided their elements have the appropriate values.

So that's a specific rule allowing string literals to be folded. I don't know of anything in the standard that says the same thing for other objects.