🚀 go-pugleaf

(To those who get offended by questions that stray outside a group's main
intention - Sorry, please hit delete now. I'm not sure what the appropriate
mail list is, and I do know that the folks that follow this one are likely
to know!)

Question: in C, if one declares char a[I][J], is there anything in the
language standard that guarantees that &a[0][0] is the first of a set of
I*J contiguous chars, and that a[i+1][0] is guaranteed to be the same
storage location as a[i][J] ).

A friend asserts that it is, and says his experience on several systems
'proves' this. My belief is that there is nothing that says this will
always be the case, and that the only constraint is that every valid pointer
a[i] will point to J chars. Which of us is right?

        Yours,
                Nigel Arnot

                NRA%ipg.ph.kcl.ac.uk@nsfnet-relay.ac.uk   (internet)
                NRA%uk.ac.kcl.ph.ipg@ukacrl.bitnet        (bitnet)