multidimensional arrays

[cottrell at nbs-vms.ARPA]

/*
okay, so you want to specify the dimensions at runtime? try this:

#define	ROWS	some constant
#define COLS	some constant

int a[ROWS][COLS];

main()
{	func(a,3,5);
	func(a,6,4);
}

#define	A(x,y)	*(a + x*j + y)

func(a,i,j)
int a[1];
{	int p,q;
	for (p = 0; p < i; p++) 
	for (p = 0; p < i; p++) {	/* row loop */
		for (q = 0; q < j; q++){/* col loop */
			printf("%d\t",A(p,q));
		} printf("\n");
	}
}

see if that doesn't get you two dimensions for one. the only problem is
that the address of an array element cannot be taken. to do that you need:

#define A(x,y) a[x*j + y]

hey, why didn't i just say that in the first place?
*/