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10/21/2025 06:56:31 AM
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alphaindex.h
26.54 KB
06/06/2025 11:36:00 AM
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appendable.h
8.54 KB
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basictz.h
9.99 KB
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brkiter.h
27.84 KB
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bytestream.h
10.77 KB
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bytestrie.h
20.83 KB
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bytestriebuilder.h
7.48 KB
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calendar.h
107.54 KB
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caniter.h
7.53 KB
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casemap.h
25.42 KB
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char16ptr.h
10.79 KB
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chariter.h
23.79 KB
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choicfmt.h
23.99 KB
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coleitr.h
13.78 KB
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coll.h
59.6 KB
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compactdecimalformat.h
6.88 KB
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curramt.h
3.67 KB
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currpinf.h
7.3 KB
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currunit.h
4.02 KB
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datefmt.h
40.7 KB
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dbbi.h
1.19 KB
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dcfmtsym.h
20.96 KB
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decimfmt.h
87.46 KB
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displayoptions.h
7.08 KB
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docmain.h
7.6 KB
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dtfmtsym.h
38.22 KB
06/06/2025 11:36:00 AM
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dtintrv.h
3.84 KB
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dtitvfmt.h
48.87 KB
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dtitvinf.h
18.63 KB
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dtptngen.h
28.05 KB
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dtrule.h
8.66 KB
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edits.h
20.74 KB
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enumset.h
2.08 KB
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errorcode.h
4.84 KB
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fieldpos.h
8.69 KB
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filteredbrk.h
5.37 KB
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fmtable.h
24.37 KB
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format.h
12.51 KB
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formattednumber.h
6.28 KB
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formattedvalue.h
9.75 KB
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fpositer.h
3.03 KB
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gender.h
3.35 KB
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gregocal.h
30.32 KB
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icudataver.h
1.02 KB
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icuplug.h
12.1 KB
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idna.h
12.93 KB
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listformatter.h
8.59 KB
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localebuilder.h
11.08 KB
06/06/2025 11:36:00 AM
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localematcher.h
26.86 KB
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localpointer.h
19.55 KB
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locdspnm.h
7.12 KB
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locid.h
48.62 KB
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measfmt.h
11.41 KB
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measunit.h
111.44 KB
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measure.h
4.63 KB
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messageformat2.h
21.05 KB
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messageformat2_arguments.h
4.49 KB
06/06/2025 11:36:00 AM
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messageformat2_data_model.h
101.89 KB
06/06/2025 11:36:00 AM
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messageformat2_data_model_names.h
784 bytes
06/06/2025 11:36:00 AM
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messageformat2_formattable.h
38.36 KB
06/06/2025 11:36:00 AM
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messageformat2_function_registry.h
18.07 KB
06/06/2025 11:36:00 AM
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messagepattern.h
33.79 KB
06/06/2025 11:36:00 AM
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msgfmt.h
44.2 KB
06/06/2025 11:36:00 AM
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normalizer2.h
34.68 KB
06/06/2025 11:36:00 AM
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normlzr.h
30.79 KB
06/06/2025 11:36:00 AM
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nounit.h
2.24 KB
06/06/2025 11:36:00 AM
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numberformatter.h
90.69 KB
06/06/2025 11:36:00 AM
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numberrangeformatter.h
26 KB
06/06/2025 11:36:00 AM
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numfmt.h
50.16 KB
06/06/2025 11:36:00 AM
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numsys.h
7.22 KB
06/06/2025 11:36:00 AM
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parseerr.h
3.08 KB
06/06/2025 11:36:00 AM
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parsepos.h
5.56 KB
06/06/2025 11:36:00 AM
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platform.h
27.18 KB
06/06/2025 11:36:00 AM
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plurfmt.h
25.07 KB
06/06/2025 11:36:00 AM
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plurrule.h
20.63 KB
06/06/2025 11:36:00 AM
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ptypes.h
2.16 KB
06/06/2025 11:36:00 AM
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putil.h
6.32 KB
06/06/2025 11:36:00 AM
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rbbi.h
32.04 KB
06/06/2025 11:36:00 AM
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rbnf.h
56.16 KB
06/06/2025 11:36:00 AM
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rbtz.h
15.75 KB
06/06/2025 11:36:00 AM
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regex.h
84.45 KB
06/06/2025 11:36:00 AM
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region.h
9.2 KB
06/06/2025 11:36:00 AM
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reldatefmt.h
22.48 KB
06/06/2025 11:36:00 AM
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rep.h
9.38 KB
06/06/2025 11:36:00 AM
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resbund.h
18.02 KB
06/06/2025 11:36:00 AM
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schriter.h
6.09 KB
06/06/2025 11:36:00 AM
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scientificnumberformatter.h
6.44 KB
06/06/2025 11:36:00 AM
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search.h
22.21 KB
06/06/2025 11:36:00 AM
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selfmt.h
14.35 KB
06/06/2025 11:36:00 AM
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📄
simpleformatter.h
12.6 KB
06/06/2025 11:36:00 AM
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📄
simplenumberformatter.h
8.87 KB
06/06/2025 11:36:00 AM
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simpletz.h
45.62 KB
06/06/2025 11:36:00 AM
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smpdtfmt.h
57.06 KB
06/06/2025 11:36:00 AM
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sortkey.h
11.13 KB
06/06/2025 11:36:00 AM
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std_string.h
1.05 KB
06/06/2025 11:36:00 AM
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strenum.h
9.96 KB
06/06/2025 11:36:00 AM
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stringoptions.h
5.79 KB
06/06/2025 11:36:00 AM
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stringpiece.h
10.28 KB
06/06/2025 11:36:00 AM
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stringtriebuilder.h
15.53 KB
06/06/2025 11:36:00 AM
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stsearch.h
21.43 KB
06/06/2025 11:36:00 AM
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symtable.h
4.28 KB
06/06/2025 11:36:00 AM
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tblcoll.h
36.96 KB
06/06/2025 11:36:00 AM
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timezone.h
45.59 KB
06/06/2025 11:36:00 AM
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tmunit.h
3.4 KB
06/06/2025 11:36:00 AM
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tmutamt.h
4.9 KB
06/06/2025 11:36:00 AM
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tmutfmt.h
7.42 KB
06/06/2025 11:36:00 AM
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translit.h
65.81 KB
06/06/2025 11:36:00 AM
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tzfmt.h
42.95 KB
06/06/2025 11:36:00 AM
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tznames.h
16.85 KB
06/06/2025 11:36:00 AM
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tzrule.h
34.81 KB
06/06/2025 11:36:00 AM
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tztrans.h
6.11 KB
06/06/2025 11:36:00 AM
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ubidi.h
89.61 KB
06/06/2025 11:36:00 AM
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ubiditransform.h
12.71 KB
06/06/2025 11:36:00 AM
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ubrk.h
24.43 KB
06/06/2025 11:36:00 AM
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ucal.h
63.96 KB
06/06/2025 11:36:00 AM
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ucasemap.h
15.27 KB
06/06/2025 11:36:00 AM
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ucat.h
5.35 KB
06/06/2025 11:36:00 AM
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uchar.h
151.74 KB
06/06/2025 11:36:00 AM
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ucharstrie.h
22.59 KB
06/06/2025 11:36:00 AM
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ucharstriebuilder.h
7.48 KB
06/06/2025 11:36:00 AM
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uchriter.h
13.24 KB
06/06/2025 11:36:00 AM
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uclean.h
11.21 KB
06/06/2025 11:36:00 AM
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ucnv.h
83.34 KB
06/06/2025 11:36:00 AM
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ucnv_cb.h
6.58 KB
06/06/2025 11:36:00 AM
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ucnv_err.h
20.98 KB
06/06/2025 11:36:00 AM
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ucnvsel.h
6.24 KB
06/06/2025 11:36:00 AM
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ucol.h
67.28 KB
06/06/2025 11:36:00 AM
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ucoleitr.h
9.82 KB
06/06/2025 11:36:00 AM
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uconfig.h
12.56 KB
06/06/2025 11:36:00 AM
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ucpmap.h
5.54 KB
06/06/2025 11:36:00 AM
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ucptrie.h
22.51 KB
06/06/2025 11:36:00 AM
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ucsdet.h
14.69 KB
06/06/2025 11:36:00 AM
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ucurr.h
16.72 KB
06/06/2025 11:36:00 AM
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udat.h
62.36 KB
06/06/2025 11:36:00 AM
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udata.h
15.63 KB
06/06/2025 11:36:00 AM
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udateintervalformat.h
11.93 KB
06/06/2025 11:36:00 AM
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udatpg.h
30.13 KB
06/06/2025 11:36:00 AM
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udisplaycontext.h
5.94 KB
06/06/2025 11:36:00 AM
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udisplayoptions.h
8.86 KB
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uenum.h
7.79 KB
06/06/2025 11:36:00 AM
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ufieldpositer.h
4.41 KB
06/06/2025 11:36:00 AM
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uformattable.h
10.97 KB
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uformattednumber.h
8.09 KB
06/06/2025 11:36:00 AM
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uformattedvalue.h
12.25 KB
06/06/2025 11:36:00 AM
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ugender.h
2.06 KB
06/06/2025 11:36:00 AM
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uidna.h
34.12 KB
06/06/2025 11:36:00 AM
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uiter.h
22.75 KB
06/06/2025 11:36:00 AM
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uldnames.h
10.48 KB
06/06/2025 11:36:00 AM
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ulistformatter.h
10.78 KB
06/06/2025 11:36:00 AM
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uloc.h
55.38 KB
06/06/2025 11:36:00 AM
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ulocale.h
6.31 KB
06/06/2025 11:36:00 AM
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ulocbuilder.h
16.69 KB
06/06/2025 11:36:00 AM
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ulocdata.h
11.3 KB
06/06/2025 11:36:00 AM
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umachine.h
14.59 KB
06/06/2025 11:36:00 AM
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umisc.h
1.34 KB
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umsg.h
24.25 KB
06/06/2025 11:36:00 AM
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umutablecptrie.h
8.3 KB
06/06/2025 11:36:00 AM
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unifilt.h
4 KB
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unifunct.h
4.05 KB
06/06/2025 11:36:00 AM
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unimatch.h
6.1 KB
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unirepl.h
3.38 KB
06/06/2025 11:36:00 AM
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uniset.h
70.4 KB
06/06/2025 11:36:00 AM
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unistr.h
182.08 KB
06/06/2025 11:36:00 AM
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unorm.h
20.55 KB
06/06/2025 11:36:00 AM
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unorm2.h
25.66 KB
06/06/2025 11:36:00 AM
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unum.h
55.16 KB
06/06/2025 11:36:00 AM
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unumberformatter.h
19.68 KB
06/06/2025 11:36:00 AM
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unumberoptions.h
5.23 KB
06/06/2025 11:36:00 AM
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unumberrangeformatter.h
15.35 KB
06/06/2025 11:36:00 AM
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unumsys.h
7.26 KB
06/06/2025 11:36:00 AM
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uobject.h
10.66 KB
06/06/2025 11:36:00 AM
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upluralrules.h
8.79 KB
06/06/2025 11:36:00 AM
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uregex.h
71.99 KB
06/06/2025 11:36:00 AM
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uregion.h
9.81 KB
06/06/2025 11:36:00 AM
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ureldatefmt.h
16.98 KB
06/06/2025 11:36:00 AM
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urename.h
141.99 KB
06/06/2025 11:36:00 AM
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urep.h
5.38 KB
06/06/2025 11:36:00 AM
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ures.h
36.65 KB
06/06/2025 11:36:00 AM
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uscript.h
28.51 KB
06/06/2025 11:36:00 AM
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usearch.h
39.21 KB
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uset.h
63.08 KB
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usetiter.h
9.63 KB
06/06/2025 11:36:00 AM
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ushape.h
18 KB
06/06/2025 11:36:00 AM
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usimplenumberformatter.h
7.31 KB
06/06/2025 11:36:00 AM
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uspoof.h
80 KB
06/06/2025 11:36:00 AM
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usprep.h
8.19 KB
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ustdio.h
38.58 KB
06/06/2025 11:36:00 AM
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ustream.h
1.89 KB
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ustring.h
72.16 KB
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ustringtrie.h
3.15 KB
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utext.h
58.1 KB
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utf.h
7.87 KB
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utf16.h
23.35 KB
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utf32.h
763 bytes
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utf8.h
30.83 KB
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utf_old.h
45.8 KB
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utmscale.h
13.78 KB
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utrace.h
17.18 KB
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utrans.h
25.54 KB
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utypes.h
34.48 KB
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uvernum.h
6.33 KB
06/06/2025 11:36:00 AM
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uversion.h
8.21 KB
06/06/2025 11:36:00 AM
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vtzone.h
20.68 KB
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// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html /* ******************************************************************************* * * Copyright (C) 2002-2012, International Business Machines * Corporation and others. All Rights Reserved. * ******************************************************************************* */ #ifndef STRENUM_H #define STRENUM_H #include "unicode/utypes.h" #if U_SHOW_CPLUSPLUS_API #include "unicode/uobject.h" #include "unicode/unistr.h" /** * \file * \brief C++ API: String Enumeration */ U_NAMESPACE_BEGIN /** * Base class for 'pure' C++ implementations of uenum api. Adds a * method that returns the next UnicodeString since in C++ this can * be a common storage format for strings. * * <p>The model is that the enumeration is over strings maintained by * a 'service.' At any point, the service might change, invalidating * the enumerator (though this is expected to be rare). The iterator * returns an error if this has occurred. Lack of the error is no * guarantee that the service didn't change immediately after the * call, so the returned string still might not be 'valid' on * subsequent use.</p> * * <p>Strings may take the form of const char*, const char16_t*, or const * UnicodeString*. The type you get is determine by the variant of * 'next' that you call. In general the StringEnumeration is * optimized for one of these types, but all StringEnumerations can * return all types. Returned strings are each terminated with a NUL. * Depending on the service data, they might also include embedded NUL * characters, so API is provided to optionally return the true * length, counting the embedded NULs but not counting the terminating * NUL.</p> * * <p>The pointers returned by next, unext, and snext become invalid * upon any subsequent call to the enumeration's destructor, next, * unext, snext, or reset.</p> * * ICU 2.8 adds some default implementations and helper functions * for subclasses. * * @stable ICU 2.4 */ class U_COMMON_API StringEnumeration : public UObject { public: /** * Destructor. * @stable ICU 2.4 */ virtual ~StringEnumeration(); /** * Clone this object, an instance of a subclass of StringEnumeration. * Clones can be used concurrently in multiple threads. * If a subclass does not implement clone(), or if an error occurs, * then nullptr is returned. * The caller must delete the clone. * * @return a clone of this object * * @see getDynamicClassID * @stable ICU 2.8 */ virtual StringEnumeration *clone() const; /** * <p>Return the number of elements that the iterator traverses. If * the iterator is out of sync with its service, status is set to * U_ENUM_OUT_OF_SYNC_ERROR, and the return value is zero.</p> * * <p>The return value will not change except possibly as a result of * a subsequent call to reset, or if the iterator becomes out of sync.</p> * * <p>This is a convenience function. It can end up being very * expensive as all the items might have to be pre-fetched * (depending on the storage format of the data being * traversed).</p> * * @param status the error code. * @return number of elements in the iterator. * * @stable ICU 2.4 */ virtual int32_t count(UErrorCode& status) const = 0; /** * <p>Returns the next element as a NUL-terminated char*. If there * are no more elements, returns nullptr. If the resultLength pointer * is not nullptr, the length of the string (not counting the * terminating NUL) is returned at that address. If an error * status is returned, the value at resultLength is undefined.</p> * * <p>The returned pointer is owned by this iterator and must not be * deleted by the caller. The pointer is valid until the next call * to next, unext, snext, reset, or the enumerator's destructor.</p> * * <p>If the iterator is out of sync with its service, status is set * to U_ENUM_OUT_OF_SYNC_ERROR and nullptr is returned.</p> * * <p>If the native service string is a char16_t* string, it is * converted to char* with the invariant converter. If the * conversion fails (because a character cannot be converted) then * status is set to U_INVARIANT_CONVERSION_ERROR and the return * value is undefined (though not nullptr).</p> * * Starting with ICU 2.8, the default implementation calls snext() * and handles the conversion. * Either next() or snext() must be implemented differently by a subclass. * * @param status the error code. * @param resultLength a pointer to receive the length, can be nullptr. * @return a pointer to the string, or nullptr. * * @stable ICU 2.4 */ virtual const char* next(int32_t *resultLength, UErrorCode& status); /** * <p>Returns the next element as a NUL-terminated char16_t*. If there * are no more elements, returns nullptr. If the resultLength pointer * is not nullptr, the length of the string (not counting the * terminating NUL) is returned at that address. If an error * status is returned, the value at resultLength is undefined.</p> * * <p>The returned pointer is owned by this iterator and must not be * deleted by the caller. The pointer is valid until the next call * to next, unext, snext, reset, or the enumerator's destructor.</p> * * <p>If the iterator is out of sync with its service, status is set * to U_ENUM_OUT_OF_SYNC_ERROR and nullptr is returned.</p> * * Starting with ICU 2.8, the default implementation calls snext() * and handles the conversion. * * @param status the error code. * @param resultLength a pointer to receive the length, can be nullptr. * @return a pointer to the string, or nullptr. * * @stable ICU 2.4 */ virtual const char16_t* unext(int32_t *resultLength, UErrorCode& status); /** * <p>Returns the next element a UnicodeString*. If there are no * more elements, returns nullptr.</p> * * <p>The returned pointer is owned by this iterator and must not be * deleted by the caller. The pointer is valid until the next call * to next, unext, snext, reset, or the enumerator's destructor.</p> * * <p>If the iterator is out of sync with its service, status is set * to U_ENUM_OUT_OF_SYNC_ERROR and nullptr is returned.</p> * * Starting with ICU 2.8, the default implementation calls next() * and handles the conversion. * Either next() or snext() must be implemented differently by a subclass. * * @param status the error code. * @return a pointer to the string, or nullptr. * * @stable ICU 2.4 */ virtual const UnicodeString* snext(UErrorCode& status); /** * <p>Resets the iterator. This re-establishes sync with the * service and rewinds the iterator to start at the first * element.</p> * * <p>Previous pointers returned by next, unext, or snext become * invalid, and the value returned by count might change.</p> * * @param status the error code. * * @stable ICU 2.4 */ virtual void reset(UErrorCode& status) = 0; /** * Compares this enumeration to other to check if both are equal * * @param that The other string enumeration to compare this object to * @return true if the enumerations are equal. false if not. * @stable ICU 3.6 */ virtual bool operator==(const StringEnumeration& that)const; /** * Compares this enumeration to other to check if both are not equal * * @param that The other string enumeration to compare this object to * @return true if the enumerations are equal. false if not. * @stable ICU 3.6 */ virtual bool operator!=(const StringEnumeration& that)const; protected: /** * UnicodeString field for use with default implementations and subclasses. * @stable ICU 2.8 */ UnicodeString unistr; /** * char * default buffer for use with default implementations and subclasses. * @stable ICU 2.8 */ char charsBuffer[32]; /** * char * buffer for use with default implementations and subclasses. * Allocated in constructor and in ensureCharsCapacity(). * @stable ICU 2.8 */ char *chars; /** * Capacity of chars, for use with default implementations and subclasses. * @stable ICU 2.8 */ int32_t charsCapacity; /** * Default constructor for use with default implementations and subclasses. * @stable ICU 2.8 */ StringEnumeration(); /** * Ensures that chars is at least as large as the requested capacity. * For use with default implementations and subclasses. * * @param capacity Requested capacity. * @param status ICU in/out error code. * @stable ICU 2.8 */ void ensureCharsCapacity(int32_t capacity, UErrorCode &status); /** * Converts s to Unicode and sets unistr to the result. * For use with default implementations and subclasses, * especially for implementations of snext() in terms of next(). * This is provided with a helper function instead of a default implementation * of snext() to avoid potential infinite loops between next() and snext(). * * For example: * \code * const UnicodeString* snext(UErrorCode& status) { * int32_t resultLength=0; * const char *s=next(&resultLength, status); * return setChars(s, resultLength, status); * } * \endcode * * @param s String to be converted to Unicode. * @param length Length of the string. * @param status ICU in/out error code. * @return A pointer to unistr. * @stable ICU 2.8 */ UnicodeString *setChars(const char *s, int32_t length, UErrorCode &status); }; U_NAMESPACE_END #endif /* U_SHOW_CPLUSPLUS_API */ /* STRENUM_H */ #endif