stack memory allocation

[gb at unc.UUCP]

On our 4.1BSD system, the command

find /usr/src/cmd -exec grep "\<alloca\>" "{}" \; -print

locates the following references to alloca.
-----------------------------------------------
 * Note: because the routine "alloca" is not portable, TUBESIZE
cmd/ex/ex_tune.h
	char *alloca(),*sp();
	arglist = (int *) alloca((nargs + 1) * sizeof(int));
cmd/lisp/franz/eval2.c
	char ch, *strb, strbb[BUFSIZ], *alloca();  /* temporary string buffer */
		strb = alloca(count);
cmd/lisp/franz/lam5.c
	register char *string; char *alloca();
	string = alloca(count);
cmd/lisp/franz/lam6.c
	char *sp(), *alloca();
	work = (int *)alloca((top-bot)*2*sizeof(int));
cmd/lisp/franz/pbignum.c
	int *sp(), *alloca(), d, negflag = 0, m, n, carry, rem, qhat, j;
	qbot = alloca(toint(utop) + toint(vbot) - 2 * toint(ubot));
cmd/lisp/franz/divbig.c
	char *strtbl,*alloca();
		strtbl = alloca(strsize);
			strtbl = alloca(strsize);
cmd/lisp/franz/ffasl.c
char *alloca();			/* stack space allocator */
	string_core_org = alloca(string_size - 4);
	binder_core_org =  alloca(lit_end - bind_org);
cmd/lisp/franz/nfasl.c
	char *alloca();
	base = handy = (double *) alloca(count);
cmd/lisp/franz/vax.c
xcreat.c+s:char *alloca();
xcreat.c+s:	d = alloca(size(name));
xmsg.c+s:char *alloca();
xmsg.c+s:		str = alloca(size(file));
cmd/local/sccs/s4/FILES
char *alloca();
	d = alloca(size(name));
cmd/local/sccs/s4/xcreat.c+s
char *alloca();
		str = alloca(size(file));
cmd/local/sccs/s4/xmsg.c+s
char *alloca();		/* forwar decl */
	v = ip = alloca(BUFSIZ);
	v = ip = (int *) alloca(BUFSIZ);
cmd/local/sccs/com/dodelt.c+s
char *alloca();		/* forward */
	xp = p = alloca(size(s));
cmd/local/sccs/com/pf_ab.c+s
---------------------------------------------

					Gary Bishop
					gb.unc at udel-relay
					unc!gb