Cross Reference: /src/bin/ed/undo.c

Lines Matching defs:ustack
43 undo_t *ustack = NULL;				/* undo stack */
54 	    (err = reallocarr(&ustack, usize += USIZE, sizeof(undo_t))) == 0) {
55 		ustack[u_p].type = type;
56 		ustack[u_p].t = get_addressed_line_node(to);
57 		ustack[u_p].h = get_addressed_line_node(from);
58 		return ustack + u_p++;
64 	free(ustack);
65 	ustack = NULL;
97 		switch(ustack[n].type) {
99 			REQUE(ustack[n].h->q_back, ustack[n].t->q_forw);
102 			REQUE(ustack[n].h->q_back, ustack[n].h);
103 			REQUE(ustack[n].t, ustack[n].t->q_forw);
107 			REQUE(ustack[n - 1].h, ustack[n].h->q_forw);
108 			REQUE(ustack[n].t->q_back, ustack[n - 1].t);
109 			REQUE(ustack[n].h, ustack[n].t);
116 		ustack[n].type ^= 1;
120 		USWAP(ustack[n], ustack[u_p - 1 - n]);
137 		if (ustack[u_p].type == UDEL) {
138 			ep = ustack[u_p].t->q_forw;
139 			for (lp = ustack[u_p].h; lp != ep; lp = tl) {
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