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Lines Matching defs:u_p

45 long u_p = 0;					/* undo stack pointer */
53 	if (u_p < usize ||
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++;
92 	} else if (u_p)
96 	for (n = u_p; n-- > 0;) {
119 	for (n = u_p; n-- > (u_p + 1)/ 2;)
120 		USWAP(ustack[n], ustack[u_p - 1 - n]);
136 	while (u_p--)
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) {
145 	u_p = 0;