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3510(1.3.1)S
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4862 V
10 I
1270(co)S
1424(\261r1.3)S
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2028(\320)S
2147(check)S
2403(out)S
2561(revision)S
2913(1.3)S
4982 V
1270(edit)S
1480(f.c)S
2028(\320)S
2147(change)S
2465(it)S
5102 V
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1751(f.c)S
2028(\320)S
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3040(1.3.1)S
5342 V
10 R
970(This)S
1184(sequence)S
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2636(the)S
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3098(Figure)S
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5522 V
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2638(erences)S
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4269(revision)S
4627(at)S
4735(level)S
4965(2.)S
5702 V
970(The)S
1155(operation)S
10 I
1562(rcsmerge)S
10 R
1963(automates)S
2398(this)S
2573(process)S
2902(\(see)S
3092(the)S
3244(Appendix\).)S
6013 V
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2532(1.1)S
6112 V
2410 H
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6112 V
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6112 V
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6112 V
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6112 V
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6573 V
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2420(Customer)S
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4062(the)S
4214(distributed)S
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1080 V
970(However,)S
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1832(modi\256cations)S
2430(should)S
2750(not)S
2931(be)S
3078(placed)S
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4301(as)S
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1260 V
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1309(instead,)S
1668(they)S
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3500(When)S
3789(the)S
3962(next)S
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1440 V
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1303(it)S
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1831(appended)S
2250(to)S
2365(the)S
2524(trunk)S
2772(of)S
2892(the)S
3051(customer's)S
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3755(\256le,)S
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4692(can)S
4868(then)S
1620 V
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1254(the)S
1411(local)S
1640(modi\256cations)S
2220(back)S
2443(into)S
2634(the)S
2791(new)S
2992(release.)S
3358(In)S
3475(the)S
3631(above)S
3903(example,)S
4300(a)S
4378(customer's)S
4850(RCS)S
1800 V
970(\256le)S
1134(would)S
1421(contain)S
1752(the)S
1911(following)S
2337(tree,)S
2548(assuming)S
2963(that)S
3150(the)S
3309(customer)S
3712(has)S
3882(received)S
4256(revision)S
4615(1.3,)S
4802(added)S
1980 V
970(his)S
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1355(modi\256cations)S
1937(as)S
2057(revision)S
2416(1.3.1.1,)S
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4740(1.3.1.1,)S
2160 V
970(resulting)S
1350(in)S
1458(2.4.1.1.)S
2471 V
8 R
2532(1.3)S
2570 V
2410 H
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2570 V
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3031 V
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1740(Figure)S
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2016(practiced)S
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3350(where)S
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3935(universities)S
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3751 V
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1495(developing)S
1969(a)S
2043(national)S
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3967 V
10 I
720(Parallel)S
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2910(development)S
3457(should)S
3755(be)S
3880(carried)S
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4507 V
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1155(experimental)S
1706(changes)S
2057(may)S
2259(later)S
2466(be)S
2590(moved)S
2892(into)S
3078(the)S
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3460(line,)S
3665(or)S
3778(abandoned.)S
4723 V
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720(Conflicting)S
1201(updates)S
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1614(some)S
1864(reason.)S
2218(In)S
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2501(meantime,)S
2959(another)S
3297(person)S
3602(must)S
3836(perform)S
4196(another)S
4534(modi\256cation)S
5263 V
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1565(In)S
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2117(the)S
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2905(should)S
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1938(the)S
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3303(time)S
3518(for)S
3671(both)S
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2762(recent)S
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4667(All)S
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3914(must)S
4151(be)S
4287(inspected,)S
4731(and)S
4918(the)S
2196 V
720(associated)S
1169(blocks)S
1469(either)S
1735(copied)S
2040(or)S
2162(skipped.)S
2567(As)S
2717(the)S
2878(number)S
3222(of)S
3344(revisions)S
3744(increases,)S
4172(the)S
4332(cost)S
4531(of)S
4652(retrieving)S
2376 V
720(any)S
896(revision)S
1251(is)S
1351(much)S
1606(higher)S
1894(than)S
2099(the)S
2254(cost)S
2448(of)S
2564(checking)S
2957(out)S
3118(the)S
3273(latest)S
3517(trunk)S
3761(revision)S
4116(with)S
4327(reverse)S
4647(deltas.)S
4968(A)S
2556 V
720(detailed)S
1071(comparison)S
1572(of)S
1690(SCCS's)S
2043(interleaved)S
2520(deltas)S
2787(and)S
2965(RCS's)S
3261(reverse)S
3582(deltas)S
3849(can)S
4021(be)S
4149(found)S
4416(in)S
4528(Reference)S
4965(4.)S
2736 V
720(This)S
952(reference)S
1375(considers)S
1806(the)S
1982(version)S
2330(of)S
2467(RCS)S
2711(with)S
2943(the)S
3119(stream)S
3440(editor)S
3728(only.)S
4016(The)S
4226(piece)S
4491(table)S
4740(method)S
2916 V
720(improves)S
1131(performance)S
1673(further,)S
2008(so)S
2135(that)S
2323(RCS)S
2551(is)S
2656(always)S
2971(faster)S
3230(than)S
3440(SCCS,)S
3749(except)S
4047(if)S
4146(10)S
4284(or)S
4405(more)S
4648(deltas)S
4919(are)S
3096 V
720(applied.)S
3312 V
970(Additional)S
1429(speed-up)S
1820(for)S
1967(both)S
2176(delta)S
2402(methods)S
2773(can)S
2943(be)S
3069(obtained)S
3445(by)S
3577(caching)S
3919(the)S
4073(most)S
4300(recently)S
4653(generated)S
3492 V
720(revision,)S
1101(as)S
1218(has)S
1385(been)S
1607(implemented)S
2163(in)S
2275(DSEE.)S
3442 V
2550(5)S
3492 V
2634(With)S
2868(caching,)S
3237(access)S
3525(time)S
3737(to)S
3849(frequently)S
4292(used)S
4508(revisions)S
4902(can)S
3672 V
720(approach)S
1115(normal)S
1428(\256le)S
1586(access)S
1870(time,)S
2103(at)S
2205(the)S
2357(cost)S
2548(of)S
2661(some)S
2902(additional)S
3332(space.)S
4032 V
10 B
720(4.)S
855(Locking:)S
1269(A)S
1371(Controversial)S
1989(Issue)S
4248 V
10 R
970(The)S
1169(locking)S
1513(mechanism)S
2012(for)S
2172(RCS)S
2406(was)S
2605(di)S
2683 H
(f)show 10 -.5 mul h (\256)show
10 R
2767(cult)S
2961(to)S
3083(design.)S
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4021(and)S
4210(its)S
4350(solution)S
4718(are)S
4884(\256rst)S
4428 V
720(presented)S
1136(in)S
1248(their)S
1465(`pure')S
1742(form,)S
1995(followed)S
2384(by)S
2518(a)S
2596(discussion)S
3047(of)S
3163(the)S
3318(complications)S
3912(caused)S
4216(by)S
4349(`real-world')S
4863(con-)S
4608 V
720(siderations.)S
4824 V
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1198(must)S
1431(prevent)S
1768(two)S
1956(or)S
2077(more)S
2320(persons)S
2663(from)S
2895(depositing)S
3350(competing)S
3810(changes)S
4169(of)S
4290(the)S
4450(same)S
4693(revision.)S
5004 V
720(Suppose)S
1104(two)S
1299(programmers)S
1875(check)S
2151(out)S
2323(revision)S
2689(2.4)S
2858(and)S
3046(modify)S
3379(it.)S
3534(Programmer)S
4077(A)S
4193(checks)S
4508(in)S
4630(a)S
4718(revision)S
5184 V
720(before)S
1010(programmer)S
1539(B.)S
1697(Unfortunately,)S
2318(programmer)S
2847(B)S
2950(has)S
3119(not)S
3284(seen)S
3498(A's)S
3679(changes,)S
4062(so)S
4188(the)S
4347(e)S
4391 H
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1079(are)S
1238(covered)S
1591(up)S
1729(by)S
1867(B's)S
2044(deposit.)S
2426(A's)S
2608(changes)S
2967(are)S
3126(not)S
3292(lost)S
3475(since)S
3718(all)S
3856(revisions)S
4255(are)S
4414(saved,)S
4703(but)S
4868(they)S
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871(con\256ned)S
1245(to)S
1353(a)S
1427(single)S
1696(revision.\263)S
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1191(con\257ict)S
1534(is)S
1644(prevented)S
2080(in)S
2201(RCS)S
2434(by)S
2577(locking.)S
2975(Whenever)S
3427(someone)S
3825(intends)S
4157(to)S
4278(edit)S
4471(a)S
4558(revision)S
4924(\(as)S
5940 V
720(opposed)S
1083(to)S
1191(reading)S
1520(or)S
1633(compiling)S
2069(it\),)S
2213(the)S
2365(revision)S
2717(should)S
3014(be)S
3138(checked)S
3494(out)S
3652(and)S
3826(locked,)S
4147(using)S
4394(the)S
10 I
4546(\261l)S
10 R
4654(option)S
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6120 V
10 I
720(co)S
10 R
814(.)S
908(On)S
1069(subsequent)S
1552(check-in,)S
10 I
1959(ci)S
10 R
2070(tests)S
2287(the)S
2448(lock)S
2659(and)S
2842(then)S
3053(removes)S
3430(it.)S
3580(At)S
3719(most)S
3953(one)S
4136(programmer)S
4668(at)S
4779(a)S
4862(time)S
6300 V
720(may)S
932(lock)S
1144(a)S
1228(particular)S
1650(revision,)S
2037(and)S
2221(only)S
2439(this)S
2624(programmer)S
3157(may)S
3368(check)S
3639(in)S
3756(the)S
3917(succeeding)S
4399(revision.)S
4815(Thus,)S
6480 V
720(while)S
972(a)S
1046(revision)S
1398(is)S
1495(locked,)S
1816(it)S
1902(is)S
1999(the)S
2151(exclusive)S
2558(responsibility)S
3133(of)S
3246(the)S
3398(locker.)S
6702 V
8 Y1
720(333333333333333333)S
6820 V
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820(\263)S
900(Note)S
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1388(problem)S
1686(is)S
1773(entirely)S
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2111 H
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3705(means)S
3942(that)S
4095(concurrent)S
4468(update)S
6920 V
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1082(on)S
1193(the)S
1321(same)S
1515(RCS)S
1698(\256le)S
1830(cannot)S
2072(be)S
2177(permitted,)S
2531(because)S
2812(that)S
2961(may)S
3128(result)S
3334(in)S
3426(inconsistent)S
3836(data.)S
4042(Atomic)S
4311(updates)S
4584(are)S
7020 V
720(essential)S
1017(\(and)S
1182(implemented)S
1621(in)S
1707(RCS\),)S
1930(but)S
2056(do)S
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1861(for)S
2011(software)S
2388(tools)S
2617(like)S
2801(RCS)S
3025(is)S
3126(that)S
3310(they)S
3516(must)S
3745(not)S
3907(stand)S
4152(in)S
4264(the)S
4421(way)S
4622(of)S
4740(making)S
1080 V
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1093(with)S
1305(a)S
1383(project.)S
1749(This)S
1961(consideration)S
2533(leads)S
2772(to)S
2884(several)S
3200(weakenings)S
3705(of)S
3822(the)S
3978(locking)S
4312(mechanism.)S
4856(First)S
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839(all,)S
1000(even)S
1224(if)S
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2189(it)S
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2455(still)S
2642(be)S
2772(checked)S
3134(out.)S
3353(This)S
3567(is)S
3670(necessary)S
4093(if)S
4191(other)S
4433(people)S
4736(wish)S
4962(to)S
1440 V
720(compile)S
1073(or)S
1187(inspect)S
1501(the)S
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1951(revision)S
2304(while)S
2556(the)S
2708(next)S
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3084(is)S
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3289(preparation.)S
3828(The)S
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1165(to)S
1275(lock)S
1479(the)S
1633(revision)S
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2102(to)S
2212(check)S
2476(in)S
2586(the)S
2740(succeeding)S
3215(one.)S
3447(Secondly,)S
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4253(operations)S
4702(on)S
4835(other)S
1800 V
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1604(\256le)S
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2109(possible;)S
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3642(does)S
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1644(occasionally)S
2183(locked)S
2489(for)S
2645(a)S
2729(long)S
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3242(of)S
3365(time)S
3583(because)S
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1153(unable)S
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1998(the)S
2165(assignment.)S
2715(If)S
2826(another)S
3170(programmer)S
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1102(the)S
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1675(three)S
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1322(release)S
1634(it;)S
1754(b\))S
1873(check)S
2141(out)S
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2765(revision,)S
3148(modify)S
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1236(later;)S
1478(c\))S
1592(break)S
1850(the)S
2009(lock.)S
2273(Breaking)S
2676(a)S
2757(lock)S
2966(leaves)S
3252(a)S
3333(highly)S
3626(visible)S
3930(trace,)S
4185(namely)S
4516(an)S
4647(electronic)S
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1581(sent)S
1774(automatically)S
2350(to)S
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3015(the)S
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3060 V
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1362(him.)S
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1511(has)S
1691(shown)S
1998(that)S
2194(the)S
2362(automatic)S
2802(mail)S
3026(message)S
3410(attaches)S
3777(a)S
3867(high)S
4091(enough)S
4431(stigma)S
4744(to)S
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3420 V
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1130(such)S
1349(that)S
1535(programmers)S
2103(break)S
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2607(only)S
2821(in)S
2935(real)S
3120(emergencies,)S
3679(or)S
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4130(co-worker)S
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1295(revisions)S
1686(behind.)S
3816 V
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1206(RCS)S
1434(\256le)S
1600(is)S
1705(private,)S
2046(i.e.,)S
2232(when)S
2487(a)S
2570(programmer)S
3102(owns)S
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3996 V
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3339(nuisance.)S
3780(In)S
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4313(the)S
4471(`strict)S
4740(locking)S
4176 V
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1492(earlier)S
1786(may)S
1998(be)S
2133(disabled,)S
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1845(each)S
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2192(is)S
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4375(Thus,)S
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5112 V
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878(is)S
980(useful)S
1259(for)S
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1851(the)S
2009(set)S
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2577(who)S
2785(would)S
3071(otherwise)S
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3719(update)S
4021(permission.)S
4551(Just)S
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4862(with)S
5292 V
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3016(a)S
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3547(software)S
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1486(Management)S
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10 R
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1156(preceding)S
1580(sections)S
1933(described)S
2346(how)S
2549(RCS)S
2770(deals)S
3006(with)S
3215(revisions)S
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6228 V
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917(discusses)S
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1601(build)S
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2844(the)S
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3297(revisions)S
3696(from)S
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930(RCS)S
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1573(Functions)S
1152 V
10 I
720(Default)S
1050(selection)S
1332 V
10 R
970(During)S
1285(development,)S
1858(the)S
2012(usual)S
2255(selection)S
2642(criterion)S
3012(is)S
3111(to)S
3221(choose)S
3530(the)S
3684(latest)S
3928(revision)S
4283(of)S
4399(all)S
4532(components.)S
1512 V
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10 I
1155(co)S
10 R
1279(command)S
1703(makes)S
1988(this)S
2163(selection)S
2548(by)S
2678(default.)S
3040(For)S
3209(example,)S
3602(the)S
3754(command)S
1692 V
10 I
1330(co)S
1484(*,v)S
1932 V
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970(retrieves)S
1354(the)S
1517(latest)S
1769(revision)S
2132(on)S
2273(the)S
2437(default)S
2756(branch)S
3069(of)S
3194(each)S
3418(RCS)S
3650(\256le)S
3820(in)S
3940(the)S
4104(current)S
4428(directory.)S
4885(The)S
2112 V
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1285(branch)S
1594(is)S
1699(usually)S
2025(the)S
2184(trunk,)S
2457(but)S
2622(may)S
2831(be)S
2962(set)S
3110(to)S
3225(be)S
3356(a)S
3437(side)S
3635(branch.)S
3998(Side)S
4213(branches)S
4604(as)S
4724(defaults)S
2292 V
970(are)S
1133(needed)S
1457(in)S
1577(distributed)S
2047(software)S
2432(development,)S
3015(as)S
3140(discussed)S
3565(in)S
3686(the)S
3851(section)S
4177(on)S
4320(the)S
4485(RCS)S
4718(revision)S
2472 V
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2868 V
10 I
720(Release)S
1060(based)S
1323(selection)S
3048 V
10 R
970(Specifying)S
1448(a)S
1537(release)S
1858(or)S
1986(branch)S
2302(number)S
2653(selects)S
2965(the)S
3133(latest)S
3390(revision)S
3758(in)S
3882(that)S
4078(release)S
4400(or)S
4529(branch.)S
4901(For)S
3228 V
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3408 V
10 I
1330(co)S
1484(\261r2)S
1683(*,v)S
3648 V
10 R
970(retrieves)S
1344(the)S
1497(latest)S
1739(revision)S
2092(with)S
2302(release)S
2610(number)S
2947(2)S
3029(from)S
3255(each)S
3469(RCS)S
3691(\256le.)S
3906(This)S
4116(selection)S
4503(is)S
4602(convenient)S
3828 V
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1061(a)S
1135(release)S
1441(has)S
1604(been)S
1822(completed)S
2268(and)S
2442(development)S
2988(has)S
3151(moved)S
3453(on)S
3583(to)S
3691(the)S
3843(next)S
4045(release.)S
4224 V
10 I
720(State)S
950(and)S
1130(author)S
1427(based)S
1690(selection)S
4404 V
10 R
970(If)S
1070(the)S
1226(highest)S
1549(level)S
1777(number)S
2116(within)S
2406(a)S
2484(given)S
2740(release)S
3050(number)S
3389(is)S
3490(not)S
3652(the)S
3808(desired)S
4130(one,)S
4333(the)S
4489(state)S
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4584 V
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1138(help.)S
1395(For)S
1564(example,)S
4764 V
10 I
1330(co)S
1484(\261r2)S
1683(\261sReleased)S
2192(*,v)S
5004 V
10 R
970(retrieves)S
1352(the)S
1513(latest)S
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2124(with)S
2341(release)S
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3001(2)S
3091(whose)S
3386(state)S
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3982(is)S
4089(`Released'.)S
4610(Of)S
4755(course,)S
5184 V
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1343(attribute)S
1710(has)S
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1989(be)S
2117(set)S
2262(appropriately,)S
2853(using)S
3104(the)S
10 I
3260(ci)S
10 R
3366(or)S
10 I
3483(rcs)S
10 R
3638(commands.)S
4159(Another)S
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4973(is)S
5364 V
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1078(select)S
1335(a)S
1409(revision)S
1761(by)S
1891(its)S
2016(author,)S
2326(using)S
2573(the)S
10 I
2725(\261w)S
10 R
2872(option.)S
5760 V
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720(Date)S
944(based)S
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970(Revisions)S
1399(may)S
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1800(be)S
1928(selected)S
2283(by)S
2417(date.)S
2672(Suppose)S
3045(a)S
3123(release)S
3433(of)S
3551(an)S
3680(entire)S
3942(system)S
4255(was)S
4445(completed)S
4896(and)S
6120 V
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1282(on)S
1412(March)S
1702(4,)S
1807(at)S
1909(1:00)S
2117(p.m.)S
2325(local)S
2549(time.)S
2812(Then)S
3047(the)S
3199(command)S
6300 V
10 I
1330(co)S
1484(\261d'March)S
1913(4,)S
2018(1:00)S
2231(pm)S
2383(LT')S
2588(*,v)S
6540 V
10 R
970(checks)S
1293(out)S
1473(all)S
1626(the)S
1801(components)S
2337(of)S
2473(that)S
2676(release,)S
3030(independent)S
3571(of)S
3707(the)S
3882(numbering.)S
4423(The)S
10 I
4631(\261d)S
10 R
4784(option)S
6720 V
970(speci\256es)S
1346(a)S
1422(`cuto)S
1627 H
(f)show 10 -.5 mul h (f)show
10 R
1720(date',)S
1976(i.e.,)S
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2662(selected)S
3014(has)S
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3253(check-in)S
3627(date)S
3824(that)S
4005(is)S
4103(closest)S
4406(to,)S
4540(but)S
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4858(after)S
6900 V
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1122(date)S
1318(given.)S
7116 V
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720(Name)S
983(based)S
1246(selection)S
7296 V
10 R
970(The)S
1178(most)S
1426(powerful)S
1839(selection)S
2247(function)S
2633(is)S
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3033(on)S
3187(assigning)S
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2135(a)S
2212(single)S
2484(release)S
2793(number)S
3131(or)S
3247(date)S
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3707(su)S
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10 R
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1080 V
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1519(from)S
1749(all)S
1885(groups.)S
2248(For)S
2423(example,)S
2822(suppose)S
3181(one)S
3362(wishes)S
3671(to)S
3786(combine)S
4167(release)S
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4567(of)S
4687(one)S
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1260 V
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1296(and)S
1488(release)S
1812(15)S
1960(of)S
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2493(Most)S
2747(likely,)S
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3840(of)S
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4229(releases)S
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10 R
4730(er)S
4854(also.)S
1440 V
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1226(a)S
1301(single)S
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1924(number)S
2260(or)S
2375(date)S
2573(passed)S
2871(to)S
2981(the)S
10 I
3135(co)S
10 R
3261(command)S
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4035(su)S
4124 H
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10 R
4208(ce)S
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4438(select)S
4697(the)S
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1620 V
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1432(Symbolic)S
1862(revision)S
2230(numbers)S
2620(solve)S
2877(this)S
3068(problem.)S
3502(Each)S
3747(RCS)S
3983(\256le)S
4156(may)S
4373(contain)S
4712(a)S
4801(set)S
4957(of)S
1800 V
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1377(names)S
1672(that)S
1862(are)S
2023(mapped)S
2379(to)S
2497(numeric)S
2864(revision)S
3226(numbers.)S
3665(For)S
3844(example,)S
4247(assume)S
4582(the)S
4745(symbol)S
1980 V
10 I
970(V3)S
10 R
1122(is)S
1230(bound)S
1521(to)S
1640(release)S
1957(number)S
2303(2)S
2394(in)S
2513(\256le)S
10 I
2682(s,v)S
10 R
2790(,)S
2856(and)S
3041(to)S
3160(revision)S
3523(number)S
3869(15.9)S
4084(in)S
10 I
4202(t,v)S
10 R
4299(.)S
4394(Then)S
4639(the)S
4801(single)S
2160 V
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2340 V
10 I
1330(co)S
1484(\261rV3)S
1744(s,v)S
1912(t,v)S
2580 V
10 R
970(retrieves)S
1344(the)S
1497(latest)S
1739(revision)S
2092(of)S
2206(release)S
2513(2)S
2594(from)S
10 I
2819(s,v)S
10 R
2927(,)S
2983(and)S
3159(revision)S
3513(15.9)S
3720(from)S
10 I
3946(t,v)S
10 R
4043(.)S
4130(In)S
4245(a)S
4321(large)S
4552(system)S
4862(with)S
2760 V
970(many)S
1249(modules,)S
1670(checking)S
2087(out)S
2271(all)S
2427(revisions)S
2844(with)S
3078(one)S
3278(command)S
3728(greatly)S
4061(simpli\256es)S
4507(con\256guration)S
2940 V
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3156 V
970(Judicious)S
1385(use)S
1555(of)S
1675(symbolic)S
2079(revision)S
2439(numbers)S
2821(helps)S
3070(with)S
3286(organizing)S
3751(large)S
3988(con\256gurations.)S
4653(A)S
4763(special)S
3336 V
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10 I
1195(rcsfreeze)S
10 R
1555(,)S
1636(assigns)S
1981(a)S
2081(symbolic)S
2504(revision)S
2882(number)S
3243(to)S
3377(a)S
3477(selected)S
3854(revision)S
4232(in)S
4366(every)S
4642(RCS)S
4887(\256le.)S
3516 V
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720(Rcsfreeze)S
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1147(e)S
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10 R
1252(ectively)S
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3696 V
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3260(may)S
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4267(with)S
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3876 V
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10 I
975(V3.5)S
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1191(in)S
1299(the)S
1451(above)S
1719(example)S
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2976(2.5)S
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10 I
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3852(15.9.5)S
4132(in)S
10 I
4240(t,v)S
10 R
4337(.)S
4092 V
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1162(options)S
10 I
1494(\261r)S
10 R
1583(,)S
10 I
1645(\261s)S
10 R
1734(,)S
10 I
1796(\261w)S
10 R
1950(and)S
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2131(\261d)S
10 R
2269(may)S
2479(be)S
2611(combined.)S
3098(If)S
3202(a)S
3284(branch)S
3593(is)S
3698(given,)S
3983(the)S
4143(latest)S
4392(revision)S
4752(on)S
4890(that)S
4272 V
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1021(satisfying)S
1440(all)S
1570(conditions)S
2017(is)S
2114(retrieved;)S
2526(otherwise,)S
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3121(default)S
3428(branch)S
3729(is)S
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4632 V
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1439(MAKE)S
1780(and)S
1972(RCS)S
4848 V
10 R
970(MAKE)S
4798 V
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4848 V
1360(is)S
1473(a)S
1563(program)S
1947(that)S
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2571(con\256gurations.)S
3245(It)S
3353(is)S
3467(driven)S
3769(by)S
3916(con\256guration)S
4496(speci\256cations)S
5028 V
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1108(in)S
1226(a)S
1310(special)S
1627(\256le,)S
1820(called)S
2098(a)S
2182(`Make\256le'.)S
2698(MAKE)S
3031(avoids)S
3331(redundant)S
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4235(steps)S
4474(by)S
4613(comparing)S
5208 V
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1308(of)S
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1713(and)S
1888(processed)S
2312(objects.)S
2681(For)S
2851(example,)S
3245(when)S
3492(instructed)S
3917(to)S
4026(compile)S
4379(all)S
4510(modules)S
4881(of)S
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5388 V
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1599(recompiles)S
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3370(changed)S
3732(since)S
3967(they)S
4169(were)S
4392(processed)S
4815(last.)S
5604 V
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1298(has)S
1465(been)S
1687(extended)S
2081(with)S
2293(an)S
2421(auto-checkout)S
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3330(for)S
3481(RCS.*)S
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5784 V
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1616(MAKE)S
1942(attempts)S
2313(a)S
2389(check-out)S
2813(operation.)S
3276(If)S
3373(successful,)S
3839(MAKE)S
4164(performs)S
4555(the)S
4708(required)S
5964 V
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1210(and)S
1392(then)S
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1917(the)S
2077(checked)S
2441(out)S
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2889(conserve)S
3281(space.)S
3595(The)S
3788(selection)S
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4657(discussed)S
6144 V
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996(can)S
1172(be)S
1304(passed)S
1608(to)S
1724(MAKE)S
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3063(directly)S
3406(embedded)S
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4576(MAKE)S
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1554(to)S
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6684 V
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2083(\(In)S
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2536(versions)S
2916(of)S
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1667(and)S
1855(maintenance.)S
2458(In)S
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2834(situations,)S
3287(programmers)S
3863(should)S
4174(obtain)S
4468(con\256gurations)S
1656 V
720(that)S
910(consist)S
1228(of)S
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1513(revisions)S
1914(they)S
2126(have)S
2354(personally)S
2810(checked)S
3176(out)S
3344(plus)S
3552(the)S
3715(latest)S
3967(checked)S
4334(in)S
4453(revision)S
4816(of)S
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1836 V
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955(revision)S
1307(groups.)S
1664(This)S
1872(schema)S
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2369(be)S
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2634(up)S
2764(as)S
2877(follows.)S
2052 V
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1207(programmer)S
1738(chooses)S
2092(a)S
2174(working)S
2546(directory)S
2945(and)S
3128(places)S
3416(into)S
3611(it)S
3706(a)S
3789(symbolic)S
4195(link,)S
4415(named)S
10 I
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4898(,)S
4962(to)S
2232 V
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3147(RCS)S
3367(\256les.)S
6420 V
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1166(mean)S
1423(number)S
1769(of)S
1893(revisions)S
2295(per)S
2463(RCS)S
2694(\256le)S
2863(is)S
2972(1.39.)S
3244(Columns)S
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3740(and)S
3926(6)S
4018(show)S
4271(the)S
4435(mean)S
4693(sizes)S
4929(\(in)S
6600 V
720(bytes\))S
1004(of)S
1127(an)S
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1491(\256le)S
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1842(of)S
1964(the)S
2125(latest)S
2375(revision)S
2736(of)S
2858(each)S
3079(RCS)S
3308(\256le,)S
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6780 V
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1255(ratio)S
1478(of)S
1601(the)S
1763(mean)S
2019(sizes.)S
2308(Assuming)S
2754(that)S
2944(all)S
3084(revisions)S
3485(in)S
3603(an)S
3738(RCS)S
3969(\256le)S
4138(are)S
4300(approximately)S
4918(the)S
6960 V
720(same)S
955(size,)S
1165(this)S
1340(ratio)S
1553(gives)S
1794(a)S
1868(measure)S
2230(of)S
2343(the)S
2495(space)S
2746(consumed)S
3181(by)S
3311(the)S
3463(extra)S
3692(revisions.)S
7176 V
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1092(our)S
1264(sample,)S
1611(over)S
1827(80)S
1966(per)S
2132(cent)S
2337(of)S
2459(the)S
2620(RCS)S
2849(\256les)S
3055(contained)S
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3782(single)S
4061(revision.)S
4478(The)S
4673(reason)S
4973(is)S
7356 V
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911(our)S
1085(systems)S
1443(programmers)S
2016(routinely)S
2418(check)S
2691(in)S
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2951(source)S
3252(\256les)S
3460(on)S
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1914(again.)S
2227(To)S
2380(get)S
2544(a)S
2630(better)S
2899(indication)S
3341(of)S
3466(how)S
3680(much)S
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4549(are)S
4712(possible)S
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935(deltas,)S
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1990(those)S
2238(\256les)S
2442(that)S
2629(contained)S
3054(2)S
3140(or)S
3259(more)S
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3897(were)S
4126(recomputed.)S
4688(Only)S
4924(for)S
1260 V
720(those)S
961(\256les)S
1158(is)S
1255(RCS)S
1475(necessary.)S
1947(As)S
2088(shown)S
2379(in)S
2487(the)S
2639(second)S
2946(line,)S
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3978(of)S
4092(revisions)S
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4631(those)S
4873(\256les)S
1440 V
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823(3.10,)S
1059(with)S
1273(an)S
1403(overhead)S
1804(of)S
1923(1.34.)S
2188(This)S
2401(means)S
2691(that)S
2876(the)S
3033(extra)S
3267(2.10)S
3477(deltas)S
3745(require)S
4062(34)S
4197(per)S
4359(cent)S
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1620 V
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842(16)S
981(per)S
1147(cent)S
1352(per)S
1518(extra)S
1756(revision.)S
2172(Rochkind)S
1570 V
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1620 V
2650(measured)S
3071(the)S
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3939(by)S
4079(SCCS,)S
4390(and)S
4574(reported)S
4946(an)S
1800 V
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1188(5)S
1276(revisions)S
1675(per)S
1840(group)S
2111(and)S
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2425(overhead)S
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3162(\(or)S
3316(about)S
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3662(per)S
3826(cent)S
4029(per)S
4193(extra)S
4429(revision\).)S
4876(In)S
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1980 V
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930(paper,)S
1209(Glasser)S
1930 V
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1980 V
1591(observed)S
1984(an)S
2111(average)S
2453(of)S
2569(7)S
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3046(per)S
3206(group)S
3472(in)S
3583(a)S
3660(single,)S
3957(large)S
4189(project,)S
4524(but)S
4685(provided)S
2160 V
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1271(\256gure.)S
1602(In)S
1728(his)S
1888(paper)S
2152(on)S
2294(DSEE)S
2110 V
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1556(in)S
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2316(a)S
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2629(1\2612)S
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3751(Since)S
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4636(accounted)S
2520 V
720(for)S
870(about)S
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1421(cent)S
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3013(a)S
3091(revision)S
3447(group)S
3714(with)S
3926(5\26110)S
4159(members)S
4558(was)S
4746(smaller)S
2700 V
720(than)S
922(a)S
996(single)S
1265(cleartext)S
1638(copy.)S
2916 V
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1155(above)S
1423(observations)S
1958(demonstrate)S
2476(clearly)S
2777(that)S
2957(the)S
3109(space)S
3360(needed)S
3672(for)S
3818(extra)S
4047(revisions)S
4439(is)S
4537(small.)S
4840(With)S
3096 V
720(delta)S
950(storage,)S
1299(the)S
1457(luxury)S
1753(of)S
1871(keeping)S
2222(multiple)S
2591(revisions)S
2987(online)S
3272(is)S
3374(certainly)S
3758(a)S
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803(system)S
1120(with)S
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1571(storage)S
1899(may)S
2111(reduce)S
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3685(programmers)S
4257(often)S
4502(save)S
4719(back-up)S
3456 V
720(copies)S
1011(anyway.)S
1411(Since)S
1668(back-up)S
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2314(are)S
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2749(much)S
3006(more)S
3246(e)S
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(f)show 10 -.5 mul h (\256)show
10 R
3374(ciently)S
3681(with)S
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4683(a)S
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3636 V
720(such)S
933(as)S
1046(RCS)S
1266(may)S
1468(actually)S
1814(free)S
1998(a)S
2072(considerable)S
2606(amount)S
2936(of)S
3049(space.)S
3996 V
10 B
720(7.)S
855(Survey)S
1185(of)S
1298(Version)S
1661(Control)S
2024(Tools)S
4212 V
10 R
970(The)S
1159(need)S
1381(to)S
1493(keep)S
1715(back-up)S
2070(copies)S
2359(of)S
2477(software)S
2855(arose)S
3100(when)S
3351(programs)S
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4143(were)S
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4506(longer)S
4796(stored)S
4392 V
720(on)S
861(paper)S
1123(media,)S
1433(but)S
1602(were)S
1836(entered)S
2170(from)S
2405(terminals)S
2818(and)S
3003(stored)S
3288(on)S
3428(disk.)S
3690(Back-up)S
4068(copies)S
4363(are)S
4524(desirable)S
4924(for)S
4572 V
720(reliability,)S
1166(and)S
1342(many)S
1596(modern)S
1934(editors)S
2239(automatically)S
2816(save)S
3026(a)S
3103(back-up)S
3457(copy)S
3684(for)S
3833(every)S
4087(\256le)S
4248(touched.)S
4652(This)S
4863(stra-)S
4752 V
720(tegy)S
928(is)S
1031(valuable)S
1405(for)S
1557(short-term)S
2009(back-ups,)S
2430(but)S
2593(not)S
2756(suitable)S
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3253(long-term)S
3682(version)S
4011(control,)S
4354(since)S
4594(an)S
4723(existing)S
4932 V
720(back-up)S
1071(copy)S
1295(is)S
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1882(whenever)S
2299(the)S
2451(corresponding)S
3052(\256le)S
3210(is)S
3307(edited.)S
5148 V
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1217(archives)S
1597(are)S
1766(suitable)S
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2289(long-term,)S
2756(o)S
2806 H
(f)show 10 -.5 mul h (\257)show
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1271(once)S
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1650(day,)S
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3200(However,)S
3621(tape)S
3818(archives)S
4181(are)S
4333(unsatisfactory)S
4924(for)S
5508 V
720(version)S
1049(control)S
1367(in)S
1480(several)S
1797(ways.)S
2092(First,)S
2337(backing)S
2689(up)S
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2983(\256le)S
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3461(every)S
3718(24)S
3854(hours)S
4112(does)S
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720(mediate)S
1078(revisions.)S
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2139(old)S
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3041(online,)S
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3542(accessing)S
3965(them)S
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4644(and)S
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5868 V
720(consuming.)S
1248(In)S
1365(particular,)S
1806(it)S
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1997(impractical)S
2480(to)S
2592(compare)S
2969(several)S
3285(old)S
3447(revisions)S
3843(of)S
3961(a)S
4040(group,)S
4333(because)S
4683(that)S
4868(may)S
6048 V
720(require)S
1037(mounting)S
1456(and)S
1635(searching)S
2052(several)S
2369(tapes.)S
2664(Tape)S
2898(archives)S
3265(are)S
3421(important)S
3845(fail-safe)S
4206(tools)S
4436(in)S
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4706(event)S
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1445(failures)S
1782(or)S
1903(accidental)S
2345(deletions,)S
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6408 V
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1582(do)S
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2194(the)S
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6624 V
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1809(for)S
1959(keeping)S
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2787(revisions)S
3182(online)S
3466(is)S
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3679(never)S
3934(delete)S
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6804 V
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1651(\256le)S
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3086(every)S
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989(much)S
1247(time)S
1461(on)S
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3032(Thirdly,)S
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903(logging,)S
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1476 V
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1573(approach)S
1968(is)S
2065(to)S
2173(separate)S
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3783(The)S
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4815(edit)S
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1656 V
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1374(until)S
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1836 V
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1594(longer)S
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2003(modi\256ed.)S
2445(\(In)S
2592(RCS,)S
2838(freezing)S
3195(a)S
3270(revisions)S
3662(is)S
3760(done)S
3985(with)S
10 I
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2016 V
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1073(implicitly)S
1494(creates)S
1801(a)S
1876(new)S
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2273(which)S
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2196 V
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1703(those)S
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2376 V
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969(manageable.)S
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2326 V
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2376 V
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4274(DEC's)S
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2556 V
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1270(version)S
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1937(systems)S
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2561(this)S
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4001(maintains)S
4435(a)S
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2736 V
720(programs,)S
1163(speci\256cations,)S
1773(documentation)S
2407(and)S
2591(messages,)S
3033(using)S
3290(deltas.)S
3618(Its)S
3758(goal)S
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4195(provide)S
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2916 V
720(the)S
873(development)S
1420(process)S
1750(from)S
1975(a)S
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2591(viewpoint.)S
3077(SCCS)S
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3618(multiple)S
3983(revisions)S
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4489(source)S
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4962(in)S
3096 V
720(an)S
861(ancestral)S
1262(tree,)S
1483(records)S
1823(a)S
1913(log)S
2087(entry)S
2338(for)S
2500(each)S
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3121(provides)S
3511(access)S
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4165(and)S
4355(has)S
4534(facilities)S
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3276 V
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1100(identifying)S
1569(each)S
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2188(An)S
2340(e)S
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1565(much)S
1819(simpler)S
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4116(revisions.)S
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2049(old)S
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2625(some)S
2867(of)S
2981(which)S
3256(may)S
3459(be)S
3584(on)S
3715(back-up)S
4067(tape.)S
4319(CMS,)S
4587(like)S
4769(SCCS,)S
3816 V
720(manages)S
1099(tree-structured)S
1710(revision)S
2062(groups,)S
2389(but)S
2547(o)S
2597 H
(f)show 10 -.5 mul h (f)show
10 R
2658(ers)S
2804(no)S
2934(identi\256cation)S
3492(mechanism.)S
4032 V
970(Tools)S
1228(for)S
1374(dealing)S
1698(with)S
1906(con\256gurations)S
2508(are)S
2659(still)S
2841(in)S
2950(a)S
3025(state)S
3239(of)S
3353(\257ux.)S
3595(SCCS,)S
3897(SDC)S
4123(and)S
4298(CMS)S
4541(can)S
4710(be)S
4835(com-)S
4212 V
720(bined)S
988(with)S
1211(MAKE)S
1550(or)S
1678(MAKE-like)S
2200(programs.)S
2677(Since)S
2944(\257exible)S
3289(selection)S
3689(rules)S
3928(are)S
4094(missing)S
4451(from)S
4690(all)S
4835(these)S
4392 V
720(tools,)S
986(it)S
1088(is)S
1201(sometimes)S
1675(di)S
1753 H
(f)show 10 -.5 mul h (\256)show
10 R
1837(cult)S
2033(to)S
2157(specify)S
2491(precisely)S
2897(which)S
3187(revision)S
3555(of)S
3685(each)S
3914(group)S
4194(should)S
4508(be)S
4649(passed)S
4962(to)S
4572 V
720(MAKE)S
1055(for)S
1211(building)S
1585(a)S
1669(desired)S
1997(con\256guration.)S
2625(The)S
2820(Xerox)S
3109(Cedar)S
3387(system)S
4522 V
3665(10)S
4572 V
3805(provides)S
4189(a)S
4273(`System)S
4641(Modeller')S
4752 V
720(that)S
903(can)S
1074(rebuild)S
1390(a)S
1467(con\256guration)S
2033(from)S
2260(an)S
2387(arbitrary)S
2763(set)S
2907(of)S
3023(module)S
3356(revisions.)S
3806(The)S
3995(revisions)S
4390(of)S
4507(a)S
4585(module)S
4919(are)S
4932 V
720(only)S
935(distinguished)S
1506(by)S
1643(creation)S
2001(time,)S
2241(and)S
2422(there)S
2658(is)S
2762(no)S
2899(tool)S
3092(for)S
3245(managing)S
3676(groups.)S
4039(Since)S
4297(the)S
4455(selection)S
4846(rules)S
5112 V
720(are)S
871(primitive,)S
1293(the)S
1445(System)S
1770(Modeller)S
2166(appears)S
2500(to)S
2608(be)S
2732(somewhat)S
3167(tedious)S
3486(to)S
3594(use.)S
3812(Apollo's)S
4192(DSEE)S
5062 V
4442(5)S
5112 V
4522(is)S
4620(a)S
4695(sophisti-)S
5292 V
720(cated)S
961(software)S
1335(engineering)S
1837(environment.)S
2428(It)S
2520(manages)S
2900(revision)S
3253(groups)S
3556(in)S
3665(a)S
3740(way)S
3937(similar)S
4245(to)S
4353(SCCS)S
4629(and)S
4803(CMS.)S
5472 V
720(Con\256gurations)S
1359(are)S
1524(built)S
1752(using)S
2013(`con\256guration)S
2624(threads'.)S
3045(A)S
3162(con\256guration)S
3740(thread)S
4034(states)S
4301(which)S
4590(revision)S
4957(of)S
5652 V
720(each)S
947(group)S
1225(named)S
1536(in)S
1659(a)S
1748(con\256guration)S
2326(should)S
2638(be)S
2777(chosen.)S
3154(A)S
3271(con\256guration)S
3849(thread)S
4142(may)S
4358(contain)S
4696(dynamic)S
5832 V
720(speci\256ers)S
1141(\(e.g.,)S
1387(`choose)S
1741(the)S
1908(revisions)S
2314(I)S
2392(am)S
2559(currently)S
2964(working)S
3342(on,)S
3512(and)S
3701(the)S
3868(most)S
4108(recent)S
4396(revisions)S
4802(other-)S
6012 V
720(wise'\),)S
1030(which)S
1310(are)S
1467(bound)S
1753(automatically)S
2332(at)S
2439(build)S
2680(time.)S
2948(It)S
3044(also)S
3240(provides)S
3619(a)S
3698(noti\256cation)S
4189(mechanism)S
4679(for)S
4830(alert-)S
6192 V
720(ing)S
878(maintainers)S
1374(about)S
1626(the)S
1778(need)S
1996(to)S
2104(rebuild)S
2417(a)S
2491(system)S
2799(after)S
3011(a)S
3085(change.)S
6408 V
970(RCS)S
1195(is)S
1298(based)S
1561(on)S
1697(a)S
1777(general)S
2106(model)S
2392(for)S
2544(describing)S
2996(multi-version/multi-con\256guration)S
4377(systems)S
6358 V
4694(11)S
6408 V
4794(.)S
4885(The)S
6588 V
720(model)S
1017(describes)S
1435(systems)S
1798(using)S
2061(AND/OR)S
2490(graphs,)S
2827(where)S
3116(AND)S
3378(nodes)S
3657(represent)S
4068(con\256gurations,)S
4711(and)S
4901(OR)S
6768 V
720(nodes)S
1012(represent)S
1436(version)S
1789(groups.)S
2175(The)S
2389(model)S
2698(gives)S
2968(rise)S
3171(to)S
3308(a)S
3411(suit)S
3615(of)S
3757(selection)S
4171(rules)S
4425(for)S
4601(composing)S
6948 V
720(con\256gurations,)S
1354(almost)S
1658(all)S
1795(of)S
1915(which)S
2196(are)S
2354(implemented)S
2913(in)S
3028(RCS.)S
3310(The)S
3501(revisions)S
3898(selected)S
4255(by)S
4391(RCS)S
4617(are)S
4774(passed)S
7128 V
720(to)S
831(MAKE)S
1158(for)S
1307(con\256guration)S
1873(building.)S
2295(Revision)S
2684(group)S
2950(management)S
3493(is)S
3593(modelled)S
3999(after)S
4215(SCCS.)S
4550(RCS)S
4774(retains)S
7308 V
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1080(best)S
1283(features,)S
1665(but)S
1835(o)S
1885 H
(f)show 10 -.5 mul h (f)show
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1946(ers)S
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2190(signi\256cantly)S
2727(simpler)S
3068(user)S
3275(interface,)S
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40 V
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1405(MAKE)S
1736(and)S
1917(improved)S
2337(identi\256cation.)S
2957(A)S
3066(detailed)S
3419(comparison)S
3922(of)S
4042(RCS)S
4270(and)S
4452(SCCS)S
4736(appears)S
1080 V
720(in)S
828(Reference)S
1261(4.)S
1296 V
970(An)S
1126(important)S
1549(component)S
2027(of)S
2144(all)S
2278(revision)S
2634(control)S
2951(systems)S
3303(is)S
3405(a)S
3484(program)S
3857(for)S
4008(computing)S
4471(deltas.)S
4794(SCCS)S
1476 V
720(and)S
896(RCS)S
1118(use)S
1283(the)S
1437(program)S
10 I
1807(diff)S
1426 V
10 R
1941(2)S
1476 V
1991(,)S
2048(which)S
2324(\256rst)S
2512(computes)S
2927(the)S
3081(longest)S
3402(common)S
3784(substring)S
4183(of)S
4298(two)S
4479(revisions,)S
4896(and)S
1656 V
720(then)S
927(produces)S
1322(the)S
1479(delta)S
1708(from)S
1937(that)S
2122(substring.)S
2579(The)S
2769(delta)S
2998(is)S
3100(simply)S
3408(an)S
3537(edit)S
3722(script)S
3979(consisting)S
4420(of)S
4538(deletion)S
4896(and)S
1836 V
720(insertion)S
1100(commands)S
1563(that)S
1743(generate)S
2110(one)S
2284(revision)S
2636(from)S
2860(the)S
3012(other.)S
2052 V
970(A)S
1078(delta)S
1308(based)S
1571(on)S
1707(a)S
1787(longest)S
2112(common)S
2498(substring)S
2901(is)S
3004(not)S
3168(necessarily)S
3648(minimal,)S
4044(because)S
4396(it)S
4489(does)S
4709(not)S
4874(take)S
2232 V
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1156(of)S
1271(crossing)S
1636(block)S
1890(moves.)S
2238(Crossing)S
2626(block)S
2880(moves)S
3173(arise)S
3392(if)S
3484(two)S
3665(or)S
3779(more)S
4015(blocks)S
4307(of)S
4421(lines)S
4641(\(e.g.,)S
4874(pro-)S
2412 V
720(cedures\))S
1090(appear)S
1388(in)S
1499(a)S
1576(di)S
1654 H
(f)show 10 -.5 mul h (f)show
10 R
1715(erent)S
1947(order)S
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2933(An)S
3088(edit)S
3271(script)S
3526(derived)S
3858(from)S
4085(a)S
4162(longest)S
4484(common)S
4868(sub-)S
2592 V
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987(\256rst)S
1182(deletes)S
1498(the)S
1659(shorter)S
1975(of)S
2097(the)S
2258(two)S
2447(blocks,)S
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3543(it.)S
3693(Heckel)S
2542 V
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884(detecting)S
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1902(but)S
2078(since)S
2331(the)S
2501(algorithm)S
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3476(heuristics,)S
3932(there)S
4179(are)S
4348(conditions)S
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2952 V
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997(the)S
1152(generated)S
1572(delta)S
1799(is)S
1899(far)S
2042(from)S
2269(minimal.)S
2691(DSEE)S
2974(uses)S
3179(this)S
3357(algorithm)S
3779(combined)S
4205(with)S
4415(blank)S
4669(compres-)S
3132 V
720(sion,)S
965(apparently)S
1439(with)S
1670(satisfactory)S
2183(overall)S
2514(results.)S
2884(A)S
3010(new)S
3230(algorithm)S
3673(that)S
3877(is)S
3998(guaranteed)S
4489(to)S
4621(produce)S
4996(a)S
3312 V
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1310(based)S
1568(on)S
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1951(moves)S
2242(appears)S
2576(in)S
2684(Reference)S
3117(13.)S
3302(A)S
3404(future)S
3672(release)S
3978(of)S
4091(RCS)S
4311(will)S
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4660(this)S
4835(algo-)S
3492 V
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3708 V
10 I
970(Acknowledgements)S
10 R
1735(:)S
1818(Many)S
2106(people)S
2427(have)S
2670(helped)S
2991(make)S
3262(RCS)S
3507(a)S
3606(success)S
3960(by)S
4115(contributed)S
4626(criticisms,)S
3888 V
720(suggestions,)S
1246(corrections,)S
1748(and)S
1926(even)S
2148(whole)S
2426(new)S
2626(commands)S
3093(\(including)S
3538(manual)S
3866(pages\).)S
4214(The)S
4402(list)S
4558(of)S
4674(people)S
4973(is)S
4068 V
720(too)S
878(long)S
1086(to)S
1194(be)S
1318(reproduced)S
1796(here,)S
2022(but)S
2180(my)S
2338(sincere)S
2650(thanks)S
2941(for)S
3087(their)S
3300(help)S
3502(and)S
3676(goodwill)S
4062(goes)S
4275(to)S
4383(all)S
4513(of)S
4626(them.)S
4488 V
10 B
720(Appendix:)S
1201(Synopsis)S
1605(of)S
1718(RCS)S
1948(Operations)S
4680 V
10 I
720(ci)S
10 B
822(\261)S
902(check)S
1176(in)S
1290(revisions)S
4800 V
10 I
970(Ci)S
10 R
1102(stores)S
1372(the)S
1531(contents)S
1901(of)S
2021(a)S
2102(working)S
2472(\256le)S
2637(into)S
2830(the)S
2989(corresponding)S
3598(RCS)S
3826(\256le)S
3992(as)S
4113(a)S
4195(new)S
4399(revision.)S
4814(If)S
4918(the)S
4920 V
970(RCS)S
1191(\256le)S
1350(doesn't)S
1675(exist,)S
10 I
1920(ci)S
10 R
2023(creates)S
2330(it.)S
10 I
2472(Ci)S
10 R
2598(removes)S
2967(the)S
3120(working)S
3484(\256le,)S
3668(unless)S
3949(one)S
4124(of)S
4238(the)S
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10 I
4717(\261u)S
10 R
4848(or)S
10 I
4962(\261l)S
5040 V
10 R
970(is)S
1071(present.)S
1448(For)S
1621(each)S
1837(check-in,)S
10 I
2239(ci)S
10 R
2345(asks)S
2551(for)S
2701(a)S
2779(commentary)S
3312(describing)S
3763(the)S
3920(changes)S
4276(relative)S
4610(to)S
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4880(pre-)S
5160 V
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5400 V
10 I
970(Ci)S
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1111(assigns)S
1446(the)S
1614(revision)S
1982(number)S
2333(given)S
2601(by)S
2747(the)S
10 I
2915(\261r)S
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3050(option;)S
3380(if)S
3487(that)S
3683(option)S
3985(is)S
4098(missing,)S
4481(it)S
4583(derives)S
4918(the)S
5520 V
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1313(from)S
1545(the)S
1705(lock)S
1915(held)S
2125(by)S
2263(the)S
2423(user;)S
2655(if)S
2754(there)S
2991(is)S
3096(no)S
3234(lock)S
3444(and)S
3625(locking)S
3962(is)S
4066(not)S
4231(strict,)S
10 I
4493(ci)S
10 R
4602(increments)S
5640 V
970(the)S
1136(number)S
1485(of)S
1612(the)S
1778(latest)S
2033(revision)S
2399(on)S
2544(the)S
2711(trunk.)S
3022(A)S
3139(side)S
3345(branch)S
3661(can)S
3844(only)S
4067(be)S
4206(started)S
4517(by)S
4662(explicitly)S
5760 V
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1416(its)S
1541(number)S
1876(with)S
2084(the)S
10 I
2236(\261r)S
10 R
2355(option)S
2641(during)S
2932(check-in.)S
6000 V
10 I
970(Ci)S
10 R
1106(also)S
1308(determines)S
1787(whether)S
2149(the)S
2312(revision)S
2675(to)S
2794(be)S
2929(checked)S
3296(in)S
3415(is)S
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3601 H
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6120 V
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1194(whether)S
1567(to)S
1697(proceed)S
2064(if)S
2177(not.)S
2412(This)S
2642(facility)S
2977(simpli\256es)S
3419(check-in)S
3814(operations)S
4281(for)S
4448(large)S
4698(systems,)S
6240 V
970(because)S
1315(one)S
1489(need)S
1707(not)S
1865(remember)S
2299(which)S
2573(\256les)S
2770(were)S
2993(changed.)S
6480 V
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1161(option)S
10 I
1453(\261k)S
10 R
1583(searches)S
1956(the)S
2114(checked)S
2476(in)S
2590(\256le)S
2754(for)S
2906(identi\256cation)S
3470(markers)S
3827(containing)S
4285(the)S
4443(attributes)S
4852(revi-)S
6600 V
970(sion)S
1169(number,)S
1530(check-in)S
1904(date,)S
2126(author)S
2412(and)S
2587(state,)S
2826(and)S
3001(assigns)S
3321(these)S
3557(to)S
3666(the)S
3819(new)S
4016(revision)S
4369(rather)S
4632(than)S
4835(com-)S
6720 V
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1275(them.)S
1579(This)S
1806(option)S
2111(is)S
2227(useful)S
2520(for)S
2685(software)S
3077(distribution:)S
3616(Recipients)S
4087(of)S
4219(distributed)S
4697(software)S
6840 V
970(using)S
1227(RCS)S
1457(should)S
1764(check)S
2036(in)S
2154(updates)S
2499(with)S
2717(the)S
10 I
2879(\261k)S
10 R
3013(option.)S
3364(This)S
3581(convention)S
4064(guarantees)S
4529(that)S
4718(revision)S
6960 V
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1369(check-in)S
1742(dates,)S
2002(etc.,)S
2198(are)S
2349(the)S
2501(same)S
2736(at)S
2838(all)S
2968(sites.)S
7116 V
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720(co)S
10 B
844(\261)S
924(check)S
1198(out)S
1367(revisions)S
7236 V
10 I
970(Co)S
10 R
1136(retrieves)S
1528(revisions)S
1938(according)S
2380(to)S
2507(revision)S
2878(number,)S
3257(date,)S
3497(author)S
3801(and)S
3994(state)S
4226(attributes.)S
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1251(the)S
1405(revision)S
1759(into)S
1947(the)S
2101(working)S
2465(\256le,)S
2649(or)S
2763(prints)S
3022(it)S
3109(on)S
3240(the)S
3393(standard)S
3762(output.)S
10 I
4104(Co)S
10 R
4252(always)S
4560(expands)S
4918(the)S
960 V
970(identi\256cation)S
1528(markers.)S
1116 V
10 I
720(ident)S
10 B
950(\261)S
1030(extract)S
1358(identi\256cation)S
1950(markers)S
1236 V
10 I
970(Ident)S
10 R
1205(extracts)S
1545(the)S
1697(identi\256cation)S
2255(markers)S
2606(expanded)S
3018(by)S
10 I
3148(co)S
10 R
3272(from)S
3496(any)S
3670(\256le)S
3828(and)S
4002(prints)S
4260(them.)S
1392 V
10 I
720(rcs)S
10 B
872(\261)S
952(change)S
1282(RCS)S
1512(\256le)S
1670(attributes)S
1512 V
10 I
970(Rcs)S
10 R
1144(is)S
1241(an)S
1365(administrative)S
1967(operation)S
2374(that)S
2554(changes)S
2905(access)S
3189(lists,)S
3406(locks,)S
3673(unlocks,)S
4040(breaks)S
4331(locks,)S
4598(toggles)S
4918(the)S
1632 V
970(strict-locking)S
1541(feature,)S
1880(sets)S
2068(state)S
2289(attributes)S
2699(and)S
2881(symbolic)S
3286(revision)S
3646(numbers,)S
4053(changes)S
4412(the)S
4571(description,)S
1752 V
970(and)S
1144(deletes)S
1451(revisions.)S
1897(A)S
1999(revision)S
2351(can)S
2519(only)S
2727(be)S
2851(deleted)S
3169(if)S
3260(it)S
3346(is)S
3443(not)S
3601(the)S
3753(fork)S
3949(of)S
4062(a)S
4136(side)S
4327(branch.)S
1908 V
10 I
720(rcsclean)S
10 B
1088(\261)S
1168(clean)S
1420(working)S
1806(directory)S
2028 V
10 I
970(Rcsclean)S
10 R
1360(removes)S
1728(working)S
2091(\256les)S
2288(that)S
2468(were)S
2691(checked)S
3047(out)S
3205(but)S
3363(never)S
3614(changed.*)S
2184 V
10 I
720(rcsdiff)S
10 B
1006(\261)S
1086(compare)S
1487(revisions)S
2304 V
10 I
970(Rcsdiff)S
10 R
1289(compares)S
1712(two)S
1903(revisions)S
2305(and)S
2490(prints)S
2759(their)S
2983(di)S
3061 H
(f)show 10 -.5 mul h (f)show
10 R
3122(erence,)S
3447(using)S
3705(the)S
3868(UNIX)S
4158(tool)S
10 I
4355(diff)S
10 R
4489(.)S
4585(One)S
4793(of)S
4918(the)S
2424 V
970(revisions)S
1361(compared)S
1784(may)S
1986(be)S
2110(checked)S
2466(out.)S
2679(This)S
2887(command)S
3311(is)S
3408(useful)S
3682(for)S
3828(\256nding)S
4142(out)S
4300(about)S
4552(changes.)S
2580 V
10 I
720(rcsfreeze)S
10 B
1110(\261)S
1190(freeze)S
1473(a)S
1553(con\256guration)S
2700 V
10 I
970(Rcsfreeze)S
10 R
1394(assigns)S
1726(the)S
1891(same)S
2139(symbolic)S
2549(revision)S
2914(number)S
3262(to)S
3383(a)S
3470(given)S
3735(revision)S
4100(in)S
4221(all)S
4364(RCS)S
4597(\256les.)S
4862(This)S
2820 V
970(command)S
1394(is)S
1491(useful)S
1765(for)S
1911(accurately)S
2350(recording)S
2762(a)S
2836(con\256guration.*)S
2976 V
10 I
720(rcsmerge)S
10 B
1121(\261)S
1201(merge)S
1496(revisions)S
3096 V
10 I
970(Rcsmerge)S
10 R
1400(merges)S
1725(two)S
1912(revisions,)S
10 I
2335(rev1)S
10 R
2549(and)S
10 I
2730(rev2)S
10 R
2907(,)S
2969(with)S
3184(respect)S
3504(to)S
3620(a)S
3702(common)S
4090(ancestor.)S
4515(A)S
4625(3-way)S
4912(\256le)S
3216 V
970(comparison)S
1472(determines)S
1946(the)S
2104(segments)S
2512(of)S
2631(lines)S
2856(that)S
3042(are)S
3199(\(a\))S
3345(the)S
3503(same)S
3744(in)S
3858(all)S
3994(three)S
4228(revisions,)S
4649(or)S
4767(\(b\))S
4918(the)S
3336 V
970(same)S
1216(in)S
1336(2)S
1428(revisions,)S
1856(or)S
1981(\(c\))S
2133(di)S
2211 H
(f)show 10 -.5 mul h (f)show
10 R
2272(erent)S
2513(in)S
2633(all)S
2775(three.)S
3071(For)S
3252(all)S
3394(segments)S
3808(of)S
3933(type)S
4147(\(b\))S
4305(where)S
10 I
4590(rev1)S
10 R
4809(is)S
4918(the)S
3456 V
970(di)S
1048 H
(f)show 10 -.5 mul h (f)show
10 R
1109(ering)S
1350(revision,)S
1733(the)S
1891(segment)S
2260(in)S
10 I
2374(rev1)S
10 R
2587(replaces)S
2949(the)S
3107(corresponding)S
3713(segment)S
4081(of)S
10 I
4199(rev2)S
10 R
4376(.)S
4466(Type)S
4706(\(c\))S
4851(indi-)S
3576 V
970(cates)S
1215(an)S
1355(overlapping)S
1878(change,)S
2231(is)S
2344(\257agged)S
2684(as)S
2813(an)S
2953(error,)S
3217(and)S
3408(requires)S
3776(user)S
3989(intervention)S
4519(to)S
4644(select)S
4918(the)S
3696 V
970(correct)S
1276(alternative.)S
3852 V
10 I
720(rlog)S
10 B
917(\261)S
997(read)S
1221(log)S
1379(messages)S
3972 V
10 I
970(Rlog)S
10 R
1189(prints)S
1447(the)S
1599(log)S
1757(messages)S
2164(and)S
2338(other)S
2573(information)S
3075(in)S
3183(an)S
3307(RCS)S
3527(\256le.)S
6962 V
8 Y1
720(333333333333333333)S
7080 V
8 R
820(*)S
900(The)S
8 I
1048(rcsclean)S
8 R
1341(and)S
8 I
1480(rcsfreeze)S
8 R
1790(commands)S
2159(are)S
2279(optional)S
2564(and)S
2703(are)S
2823(not)S
2949(always)S
3194(installed.)S
7920 V
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8 R
8 R
40 V
10 R
0(-)S
520 V
2767(- 19 -)S
840 V
10 B
720(References)S
1032 V
10 R
720(1.)S
970(Feldman,)S
1378(Stuart)S
1650(I.,)S
1766(``Make\320A)S
2264(Program)S
2642(for)S
2792(Maintaining)S
3315(Computer)S
3749(Programs,'')S
10 I
4257(Software\320Practice)S
1152 V
970(&)S
1078(Experience)S
10 R
1526(,)S
1581(vol.)S
1764(9,)S
1869(no.)S
2024(3,)S
2129(pp.)S
2284(255-265,)S
2672(March)S
2962(1979.)S
1308 V
720(2.)S
970(Hunt,)S
1229(James)S
1507(W.)S
1660(and)S
1838(McIlroy,)S
2224(M.)S
2372(D.,)S
2528(``An)S
2750(Algorithm)S
3201(for)S
3351(Di)S
3451 H
(f)show 10 -.5 mul h (f)show
10 R
3512(erential)S
3846(File)S
4037(Comparison,'')S
4652(41,)S
4812(Com-)S
1428 V
970(puting)S
1256(Science)S
1596(Technical)S
2019(Report,)S
2346(Bell)S
2543(Laboratories,)S
3102(June)S
3315(1976.)S
1584 V
720(3.)S
970(Rochkind,)S
1414(Marc)S
1654(J.,)S
1773(``The)S
2024(Source)S
2331(Code)S
2572(Control)S
2908(System,'')S
10 I
3324(IEEE)S
3570(Transactions)S
4123(on)S
4254(Software)S
4641(Engineer-)S
1704 V
970(ing)S
10 R
1098(,)S
1153(vol.)S
1336(SE-1,)S
1591(no.)S
1746(4,)S
1851(pp.)S
2006(364-370,)S
2394(Dec.)S
2609(1975.)S
1860 V
720(4.)S
970(Tichy,)S
1275(Walter)S
1593(F.,)S
1746(``Design,)S
2168(Implementation,)S
2874(and)S
3066(Evaluation)S
3547(of)S
3678(a)S
3770(Revision)S
4174(Control)S
4528(System,'')S
4962(in)S
1980 V
10 I
970(Proceedings)S
1503(of)S
1615(the)S
1771(6th)S
1933(International)S
2495(Conference)S
2989(on)S
3123(Software)S
3512(Engineering)S
10 R
4006(,)S
4064(pp.)S
4222(58-67,)S
4513(ACM,)S
4799(IEEE,)S
2100 V
970(IPS,)S
1170(NBS,)S
1420(September)S
1877(1982.)S
2256 V
720(5.)S
970(Leblang,)S
1357(David)S
1636(B.)S
1763(and)S
1942(Chase,)S
2247(Robert)S
2555(P.,)S
2697(``Computer-Aided)S
3476(Software)S
3872(Engineering)S
4396(in)S
4510(a)S
4590(Distributed)S
2376 V
970(Workstation)S
1505(Environment,'')S
10 I
2159(SIGPLAN)S
2600(Notices)S
10 R
2900(,)S
2966(vol.)S
3160(19,)S
3325(no.)S
3490(5,)S
3605(pp.)S
3770(104-112,)S
4168(May)S
4391(1984.)S
4686(Proceed-)S
2496 V
970(ings)S
1184(of)S
1314(the)S
1484(ACM)S
1760(SIGSOFT/SIGPLAN)S
2664(Software)S
3072(Engineering)S
3608(Symposium)S
4135(on)S
4283(Practical)S
4680(Software)S
2616 V
970(Development)S
1538(Environments.)S
2772 V
720(6.)S
970(Glasser,)S
1325(Alan)S
1551(L.,)S
1694(``The)S
1947(Evolution)S
2374(of)S
2489(a)S
2565(Source)S
2874(Code)S
3117(Control)S
3455(System,'')S
10 I
3873(Software)S
4261(Engineering)S
4787(Notes)S
10 R
5015(,)S
2892 V
970(vol.)S
1180(3,)S
1312(no.)S
1494(5,)S
1626(pp.)S
1808(122-125,)S
2223(Nov.)S
2477(1978.)S
2789(Proceedings)S
3334(of)S
3474(the)S
3653(Software)S
4069(Quality)S
4425(and)S
4625(Assurance)S
3012 V
970(Workshop.)S
3168 V
720(7.)S
970(Brown,)S
1297(H.B.,)S
1541(``The)S
1792(Clear/Caster)S
2321(System,'')S
10 I
2737(Nato)S
2962(Conference)S
3452(on)S
3582(Software)S
3968(Engineering,)S
4517(Rome)S
10 R
4744(,)S
4799(1970.)S
3324 V
720(8.)S
970(Habermann,)S
1493(A.)S
1623(Nico,)S
10 I
1875(A)S
1969(Software)S
2358(Development)S
2918(Control)S
3264(System,)S
10 R
3600(Technical)S
4027(Report,)S
4358(Carnegie-Mellon)S
3444 V
970(University,)S
1447(Department)S
1948(of)S
2061(Computer)S
2491(Science,)S
2856(Jan.)S
3044(1979.)S
3600 V
720(9.)S
970(DEC,)S
10 I
1258(Code)S
1532(Management)S
2116(System,)S
10 R
2481(Digital)S
2823(Equipment)S
3326(Corporation,)S
3898(1982.)S
4217(Document)S
4697(No. EA-)S
3720 V
970(23134-82)S
3876 V
720(10.)S
970(Lampson,)S
1437(Butler)S
1757(W.)S
1946(and)S
2160(Schmidt,)S
2589(Eric)S
2825(E.,)S
3006(``Practical)S
3491(Use)S
3717(of)S
3871(a)S
3986(Polymorphic)S
4574(Applicative)S
3996 V
970(Language,'')S
1491(in)S
10 I
1606(Proceedings)S
2142(of)S
2257(the)S
2416(10th)S
2630(Symposium)S
3121(on)S
3257(Principles)S
3704(of)S
3818(Programming)S
4415(Languages)S
10 R
4854(,)S
4915(pp.)S
4116 V
970(237-255,)S
1358(ACM,)S
1641(January)S
1981(1983.)S
4272 V
720(11.)S
970(Tichy,)S
1260(Walter)S
1563(F.,)S
1701(``A)S
1871(Data)S
2091(Model)S
2385(for)S
2534(Programming)S
3117(Support)S
3467(Environments)S
4061(and)S
4238(its)S
4366(Application,'')S
4962(in)S
4392 V
10 I
970(Automated)S
1438(Tools)S
1696(for)S
1848(Information)S
2361(System)S
2673(Design)S
2991(and)S
3176(Development)S
10 R
3702(,)S
3761(ed.)S
3914(Hans-Jochen)S
4463(Schneider)S
4896(and)S
4512 V
970(Anthony)S
1350(I.)S
1438(Wasserman,)S
1958(North-Holland)S
2576(Publishing)S
3035(Company,)S
3479(Amsterdam,)S
4000(1982.)S
4668 V
720(12.)S
970(Heckel,)S
1328(Paul,)S
1582(``A)S
1771(Technique)S
2243(for)S
2410(Isolating)S
2811(Di)S
2911 H
(f)show 10 -.5 mul h (f)show
10 R
2972(erences)S
3321(Between)S
3721(Files,'')S
10 I
4058(Communications)S
4788(of)S
4918(the)S
4788 V
970(ACM)S
10 R
1181(,)S
1236(vol.)S
1419(21,)S
1574(no.)S
1729(4,)S
1834(pp.)S
1989(264-268,)S
2377(April)S
2618(1978.)S
4944 V
720(13.)S
970(Tichy,)S
1270(Walter)S
1583(F.,)S
1731(``The)S
1994(String-to-String)S
2670(Correction)S
3139(Problem)S
3520(with)S
3740(Block)S
4021(Moves,'')S
10 I
4426(ACM)S
4679(Transac-)S
5064 V
970(tions)S
1195(on)S
1325(Computer)S
1755(Systems)S
10 R
2071(,)S
2126(vol.)S
2309(2,)S
2414(no.)S
2569(4,)S
2674(pp.)S
2829(309-321,)S
3217(Nov.)S
3444(1984.)S
7950 V
0(-)S
7950 V
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