PASSING MULTIDIMENSIONAL ARRAYS

[Joseph S. D. Yao]

In article <138 at brl-tgr.ARPA> jeff at isi-vaxa.arpa (Jeffery A. Cavallaro) writes:
>I have an application where I want to pass a 2D array to a subroutine.
>The data does not easily avail itself to being converted to a 1D array
>of structures.  How can one access the array in the subroutine???
>Calling routine:
>	struct x a[M][N];
>	subrout(M, N, a);
>The only way I can see to do it is:
>	subrout(m, n, a)
>	struct x *a;
>and do the address arithmetic yourself.  ...

Yes, you could do it the second way; and unfortunately this is the
only way to implement a routine that has several different sized
matrices being passed to it.  However, it seems to me that you are
implying a known fixed matrix size in your application.  In that
case, you can call:
	struct x a[M][N];
	subrout(a)
and just declare
	subrout(arg)
	  struct x arg[M][N];
	{  ...
-- 

	Joe Yao		hadron!jsdy at seismo.{CSS.GOV,ARPA,UUCP}