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Size
Permission
Date
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alphaindex.h
26.54
KB
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2025-06-06 11:26
appendable.h
8.54
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2025-06-06 11:26
basictz.h
9.99
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2025-06-06 11:26
brkiter.h
27.84
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2025-06-06 11:26
bytestream.h
10.77
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2025-06-06 11:26
bytestrie.h
20.83
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2025-06-06 11:26
bytestriebuilder.h
7.48
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2025-06-06 11:26
calendar.h
107.54
KB
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2025-06-06 11:26
caniter.h
7.53
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2025-06-06 11:26
casemap.h
25.42
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2025-06-06 11:26
char16ptr.h
10.79
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2025-06-06 11:26
chariter.h
23.79
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2025-06-06 11:26
choicfmt.h
23.99
KB
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2025-06-06 11:26
coleitr.h
13.78
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2025-06-06 11:26
coll.h
59.6
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2025-06-06 11:26
compactdecimalformat.h
6.88
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2025-06-06 11:26
curramt.h
3.67
KB
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2025-06-06 11:26
currpinf.h
7.3
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2025-06-06 11:26
currunit.h
4.02
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2025-06-06 11:26
datefmt.h
40.7
KB
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2025-06-06 11:26
dbbi.h
1.19
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2025-06-06 11:26
dcfmtsym.h
20.96
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2025-06-06 11:26
decimfmt.h
87.46
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2025-06-06 11:26
displayoptions.h
7.08
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2025-06-06 11:26
docmain.h
7.6
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2025-06-06 11:26
dtfmtsym.h
38.22
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2025-06-06 11:26
dtintrv.h
3.84
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2025-06-06 11:26
dtitvfmt.h
48.87
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2025-06-06 11:26
dtitvinf.h
18.63
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2025-06-06 11:26
dtptngen.h
28.05
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2025-06-06 11:26
dtrule.h
8.66
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2025-06-06 11:26
edits.h
20.74
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2025-06-06 11:26
enumset.h
2.08
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2025-06-06 11:26
errorcode.h
4.84
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2025-06-06 11:26
fieldpos.h
8.69
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2025-06-06 11:26
filteredbrk.h
5.37
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2025-06-06 11:26
fmtable.h
24.37
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2025-06-06 11:26
format.h
12.51
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2025-06-06 11:26
formattednumber.h
6.28
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2025-06-06 11:26
formattedvalue.h
9.75
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2025-06-06 11:26
fpositer.h
3.03
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2025-06-06 11:26
gender.h
3.35
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2025-06-06 11:26
gregocal.h
30.32
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2025-06-06 11:26
icudataver.h
1.02
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2025-06-06 11:26
icuplug.h
12.1
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2025-06-06 11:26
idna.h
12.93
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2025-06-06 11:26
listformatter.h
8.59
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2025-06-06 11:26
localebuilder.h
11.08
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2025-06-06 11:26
localematcher.h
26.86
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2025-06-06 11:26
localpointer.h
19.55
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2025-06-06 11:26
locdspnm.h
7.12
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2025-06-06 11:26
locid.h
48.62
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2025-06-06 11:26
measfmt.h
11.41
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2025-06-06 11:26
measunit.h
111.44
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2025-06-06 11:26
measure.h
4.63
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2025-06-06 11:26
messageformat2.h
21.05
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2025-06-06 11:26
messageformat2_arguments.h
4.49
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2025-06-06 11:26
messageformat2_data_model.h
101.89
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2025-06-06 11:26
messageformat2_data_model_names.h
784
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2025-06-06 11:26
messageformat2_formattable.h
38.36
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2025-06-06 11:26
messageformat2_function_registry.h
18.07
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2025-06-06 11:26
messagepattern.h
33.79
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2025-06-06 11:26
msgfmt.h
44.2
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2025-06-06 11:26
normalizer2.h
34.68
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2025-06-06 11:26
normlzr.h
30.79
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2025-06-06 11:26
nounit.h
2.24
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2025-06-06 11:26
numberformatter.h
90.69
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2025-06-06 11:26
numberrangeformatter.h
26
KB
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2025-06-06 11:26
numfmt.h
50.16
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2025-06-06 11:26
numsys.h
7.22
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2025-06-06 11:26
parseerr.h
3.08
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2025-06-06 11:26
parsepos.h
5.56
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2025-06-06 11:26
platform.h
27.18
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2025-06-06 11:26
plurfmt.h
25.07
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2025-06-06 11:26
plurrule.h
20.63
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2025-06-06 11:26
ptypes.h
2.16
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2025-06-06 11:26
putil.h
6.32
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2025-06-06 11:26
rbbi.h
32.04
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2025-06-06 11:26
rbnf.h
56.16
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2025-06-06 11:26
rbtz.h
15.75
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2025-06-06 11:26
regex.h
84.45
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2025-06-06 11:26
region.h
9.2
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2025-06-06 11:26
reldatefmt.h
22.48
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2025-06-06 11:26
rep.h
9.38
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2025-06-06 11:26
resbund.h
18.02
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2025-06-06 11:26
schriter.h
6.09
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2025-06-06 11:26
scientificnumberformatter.h
6.44
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2025-06-06 11:26
search.h
22.21
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2025-06-06 11:26
selfmt.h
14.35
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2025-06-06 11:26
simpleformatter.h
12.6
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2025-06-06 11:26
simplenumberformatter.h
8.87
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2025-06-06 11:26
simpletz.h
45.62
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2025-06-06 11:26
smpdtfmt.h
57.06
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2025-06-06 11:26
sortkey.h
11.13
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2025-06-06 11:26
std_string.h
1.05
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2025-06-06 11:26
strenum.h
9.96
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2025-06-06 11:26
stringoptions.h
5.79
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2025-06-06 11:26
stringpiece.h
10.28
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2025-06-06 11:26
stringtriebuilder.h
15.53
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2025-06-06 11:26
stsearch.h
21.43
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2025-06-06 11:26
symtable.h
4.28
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2025-06-06 11:26
tblcoll.h
36.96
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2025-06-06 11:26
timezone.h
45.59
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2025-06-06 11:26
tmunit.h
3.4
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2025-06-06 11:26
tmutamt.h
4.9
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2025-06-06 11:26
tmutfmt.h
7.42
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2025-06-06 11:26
translit.h
65.81
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2025-06-06 11:26
tzfmt.h
42.95
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2025-06-06 11:26
tznames.h
16.85
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2025-06-06 11:26
tzrule.h
34.81
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2025-06-06 11:26
tztrans.h
6.11
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2025-06-06 11:26
ubidi.h
89.61
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2025-06-06 11:26
ubiditransform.h
12.71
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2025-06-06 11:26
ubrk.h
24.43
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2025-06-06 11:26
ucal.h
63.96
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2025-06-06 11:26
ucasemap.h
15.27
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2025-06-06 11:26
ucat.h
5.35
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2025-06-06 11:26
uchar.h
151.74
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2025-06-06 11:26
ucharstrie.h
22.59
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2025-06-06 11:26
ucharstriebuilder.h
7.48
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2025-06-06 11:26
uchriter.h
13.24
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2025-06-06 11:26
uclean.h
11.21
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2025-06-06 11:26
ucnv.h
83.34
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2025-06-06 11:26
ucnv_cb.h
6.58
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2025-06-06 11:26
ucnv_err.h
20.98
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2025-06-06 11:26
ucnvsel.h
6.24
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2025-06-06 11:26
ucol.h
67.28
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2025-06-06 11:26
ucoleitr.h
9.82
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2025-06-06 11:26
uconfig.h
12.56
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2025-06-06 11:26
ucpmap.h
5.54
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2025-06-06 11:26
ucptrie.h
22.51
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2025-06-06 11:26
ucsdet.h
14.69
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2025-06-06 11:26
ucurr.h
16.72
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2025-06-06 11:26
udat.h
62.36
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2025-06-06 11:26
udata.h
15.63
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2025-06-06 11:26
udateintervalformat.h
11.93
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2025-06-06 11:26
udatpg.h
30.13
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2025-06-06 11:26
udisplaycontext.h
5.94
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2025-06-06 11:26
udisplayoptions.h
8.86
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2025-06-06 11:26
uenum.h
7.79
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2025-06-06 11:26
ufieldpositer.h
4.41
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2025-06-06 11:26
uformattable.h
10.97
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2025-06-06 11:26
uformattednumber.h
8.09
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2025-06-06 11:26
uformattedvalue.h
12.25
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2025-06-06 11:26
ugender.h
2.06
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2025-06-06 11:26
uidna.h
34.12
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2025-06-06 11:26
uiter.h
22.75
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2025-06-06 11:26
uldnames.h
10.48
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2025-06-06 11:26
ulistformatter.h
10.78
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2025-06-06 11:26
uloc.h
55.38
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2025-06-06 11:26
ulocale.h
6.31
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2025-06-06 11:26
ulocbuilder.h
16.69
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2025-06-06 11:26
ulocdata.h
11.3
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2025-06-06 11:26
umachine.h
14.59
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2025-06-06 11:26
umisc.h
1.34
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umsg.h
24.25
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2025-06-06 11:26
umutablecptrie.h
8.3
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2025-06-06 11:26
unifilt.h
4
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unifunct.h
4.05
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2025-06-06 11:26
unimatch.h
6.1
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2025-06-06 11:26
unirepl.h
3.38
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2025-06-06 11:26
uniset.h
70.4
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unistr.h
182.08
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unorm.h
20.55
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unorm2.h
25.66
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2025-06-06 11:26
unum.h
55.16
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2025-06-06 11:26
unumberformatter.h
19.68
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2025-06-06 11:26
unumberoptions.h
5.23
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2025-06-06 11:26
unumberrangeformatter.h
15.35
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2025-06-06 11:26
unumsys.h
7.26
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2025-06-06 11:26
uobject.h
10.66
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2025-06-06 11:26
upluralrules.h
8.79
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2025-06-06 11:26
uregex.h
71.99
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2025-06-06 11:26
uregion.h
9.81
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2025-06-06 11:26
ureldatefmt.h
16.98
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2025-06-06 11:26
urename.h
141.99
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urep.h
5.38
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ures.h
36.65
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2025-06-06 11:26
uscript.h
28.51
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usearch.h
39.21
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2025-06-06 11:26
uset.h
63.08
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usetiter.h
9.63
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ushape.h
18
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usimplenumberformatter.h
7.31
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uspoof.h
80
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usprep.h
8.19
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ustdio.h
38.58
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ustream.h
1.89
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ustring.h
72.16
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ustringtrie.h
3.15
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utext.h
58.1
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2025-06-06 11:26
utf.h
7.87
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utf16.h
23.35
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utf32.h
763
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utf8.h
30.83
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utf_old.h
45.8
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utmscale.h
13.78
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utrace.h
17.18
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2025-06-06 11:26
utrans.h
25.54
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utypes.h
34.48
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2025-06-06 11:26
uvernum.h
6.33
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2025-06-06 11:26
uversion.h
8.21
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2025-06-06 11:26
vtzone.h
20.68
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2025-06-06 11:26
Save
Rename
// © 2016 and later: Unicode, Inc. and others. // License & terms of use: http://www.unicode.org/copyright.html // Copyright (C) 2009-2012, International Business Machines // Corporation and others. All Rights Reserved. // // Copyright 2007 Google Inc. All Rights Reserved. // Author: sanjay@google.com (Sanjay Ghemawat) // // Abstract interface that consumes a sequence of bytes (ByteSink). // // Used so that we can write a single piece of code that can operate // on a variety of output string types. // // Various implementations of this interface are provided: // ByteSink: // CheckedArrayByteSink Write to a flat array, with bounds checking // StringByteSink Write to an STL string // This code is a contribution of Google code, and the style used here is // a compromise between the original Google code and the ICU coding guidelines. // For example, data types are ICU-ified (size_t,int->int32_t), // and API comments doxygen-ified, but function names and behavior are // as in the original, if possible. // Assertion-style error handling, not available in ICU, was changed to // parameter "pinning" similar to UnicodeString. // // In addition, this is only a partial port of the original Google code, // limited to what was needed so far. The (nearly) complete original code // is in the ICU svn repository at icuhtml/trunk/design/strings/contrib // (see ICU ticket 6765, r25517). #ifndef __BYTESTREAM_H__ #define __BYTESTREAM_H__ /** * \file * \brief C++ API: Interface for writing bytes, and implementation classes. */ #include "unicode/utypes.h" #if U_SHOW_CPLUSPLUS_API #include "unicode/uobject.h" #include "unicode/std_string.h" U_NAMESPACE_BEGIN /** * A ByteSink can be filled with bytes. * @stable ICU 4.2 */ class U_COMMON_API ByteSink : public UMemory { public: /** * Default constructor. * @stable ICU 4.2 */ ByteSink() { } /** * Virtual destructor. * @stable ICU 4.2 */ virtual ~ByteSink(); /** * Append "bytes[0,n-1]" to this. * @param bytes the pointer to the bytes * @param n the number of bytes; must be non-negative * @stable ICU 4.2 */ virtual void Append(const char* bytes, int32_t n) = 0; /** * Appends n bytes to this. Same as Append(). * Call AppendU8() with u8"string literals" which are const char * in C++11 * but const char8_t * in C++20. * If the compiler does support char8_t as a distinct type, * then an AppendU8() overload for that is defined and will be chosen. * * @param bytes the pointer to the bytes * @param n the number of bytes; must be non-negative * @stable ICU 67 */ inline void AppendU8(const char* bytes, int32_t n) { Append(bytes, n); } #if defined(__cpp_char8_t) || defined(U_IN_DOXYGEN) /** * Appends n bytes to this. Same as Append() but for a const char8_t * pointer. * Call AppendU8() with u8"string literals" which are const char * in C++11 * but const char8_t * in C++20. * If the compiler does support char8_t as a distinct type, * then this AppendU8() overload for that is defined and will be chosen. * * @param bytes the pointer to the bytes * @param n the number of bytes; must be non-negative * @stable ICU 67 */ inline void AppendU8(const char8_t* bytes, int32_t n) { Append(reinterpret_cast<const char*>(bytes), n); } #endif /** * Returns a writable buffer for appending and writes the buffer's capacity to * *result_capacity. Guarantees *result_capacity>=min_capacity. * May return a pointer to the caller-owned scratch buffer which must have * scratch_capacity>=min_capacity. * The returned buffer is only valid until the next operation * on this ByteSink. * * After writing at most *result_capacity bytes, call Append() with the * pointer returned from this function and the number of bytes written. * Many Append() implementations will avoid copying bytes if this function * returned an internal buffer. * * Partial usage example: * int32_t capacity; * char* buffer = sink->GetAppendBuffer(..., &capacity); * ... Write n bytes into buffer, with n <= capacity. * sink->Append(buffer, n); * In many implementations, that call to Append will avoid copying bytes. * * If the ByteSink allocates or reallocates an internal buffer, it should use * the desired_capacity_hint if appropriate. * If a caller cannot provide a reasonable guess at the desired capacity, * it should pass desired_capacity_hint=0. * * If a non-scratch buffer is returned, the caller may only pass * a prefix to it to Append(). * That is, it is not correct to pass an interior pointer to Append(). * * The default implementation always returns the scratch buffer. * * @param min_capacity required minimum capacity of the returned buffer; * must be non-negative * @param desired_capacity_hint desired capacity of the returned buffer; * must be non-negative * @param scratch default caller-owned buffer * @param scratch_capacity capacity of the scratch buffer * @param result_capacity pointer to an integer which will be set to the * capacity of the returned buffer * @return a buffer with *result_capacity>=min_capacity * @stable ICU 4.2 */ virtual char* GetAppendBuffer(int32_t min_capacity, int32_t desired_capacity_hint, char* scratch, int32_t scratch_capacity, int32_t* result_capacity); /** * Flush internal buffers. * Some byte sinks use internal buffers or provide buffering * and require calling Flush() at the end of the stream. * The ByteSink should be ready for further Append() calls after Flush(). * The default implementation of Flush() does nothing. * @stable ICU 4.2 */ virtual void Flush(); private: ByteSink(const ByteSink &) = delete; ByteSink &operator=(const ByteSink &) = delete; }; // ------------------------------------------------------------- // Some standard implementations /** * Implementation of ByteSink that writes to a flat byte array, * with bounds-checking: * This sink will not write more than capacity bytes to outbuf. * If more than capacity bytes are Append()ed, then excess bytes are ignored, * and Overflowed() will return true. * Overflow does not cause a runtime error. * @stable ICU 4.2 */ class U_COMMON_API CheckedArrayByteSink : public ByteSink { public: /** * Constructs a ByteSink that will write to outbuf[0..capacity-1]. * @param outbuf buffer to write to * @param capacity size of the buffer * @stable ICU 4.2 */ CheckedArrayByteSink(char* outbuf, int32_t capacity); /** * Destructor. * @stable ICU 4.2 */ virtual ~CheckedArrayByteSink(); /** * Returns the sink to its original state, without modifying the buffer. * Useful for reusing both the buffer and the sink for multiple streams. * Resets the state to NumberOfBytesWritten()=NumberOfBytesAppended()=0 * and Overflowed()=false. * @return *this * @stable ICU 4.6 */ virtual CheckedArrayByteSink& Reset(); /** * Append "bytes[0,n-1]" to this. * @param bytes the pointer to the bytes * @param n the number of bytes; must be non-negative * @stable ICU 4.2 */ virtual void Append(const char* bytes, int32_t n) override; /** * Returns a writable buffer for appending and writes the buffer's capacity to * *result_capacity. For details see the base class documentation. * @param min_capacity required minimum capacity of the returned buffer; * must be non-negative * @param desired_capacity_hint desired capacity of the returned buffer; * must be non-negative * @param scratch default caller-owned buffer * @param scratch_capacity capacity of the scratch buffer * @param result_capacity pointer to an integer which will be set to the * capacity of the returned buffer * @return a buffer with *result_capacity>=min_capacity * @stable ICU 4.2 */ virtual char* GetAppendBuffer(int32_t min_capacity, int32_t desired_capacity_hint, char* scratch, int32_t scratch_capacity, int32_t* result_capacity) override; /** * Returns the number of bytes actually written to the sink. * @return number of bytes written to the buffer * @stable ICU 4.2 */ int32_t NumberOfBytesWritten() const { return size_; } /** * Returns true if any bytes were discarded, i.e., if there was an * attempt to write more than 'capacity' bytes. * @return true if more than 'capacity' bytes were Append()ed * @stable ICU 4.2 */ UBool Overflowed() const { return overflowed_; } /** * Returns the number of bytes appended to the sink. * If Overflowed() then NumberOfBytesAppended()>NumberOfBytesWritten() * else they return the same number. * @return number of bytes written to the buffer * @stable ICU 4.6 */ int32_t NumberOfBytesAppended() const { return appended_; } private: char* outbuf_; const int32_t capacity_; int32_t size_; int32_t appended_; UBool overflowed_; CheckedArrayByteSink() = delete; CheckedArrayByteSink(const CheckedArrayByteSink &) = delete; CheckedArrayByteSink &operator=(const CheckedArrayByteSink &) = delete; }; /** * Implementation of ByteSink that writes to a "string". * The StringClass is usually instantiated with a std::string. * @stable ICU 4.2 */ template<typename StringClass> class StringByteSink : public ByteSink { public: /** * Constructs a ByteSink that will append bytes to the dest string. * @param dest pointer to string object to append to * @stable ICU 4.2 */ StringByteSink(StringClass* dest) : dest_(dest) { } /** * Constructs a ByteSink that reserves append capacity and will append bytes to the dest string. * * @param dest pointer to string object to append to * @param initialAppendCapacity capacity beyond dest->length() to be reserve()d * @stable ICU 60 */ StringByteSink(StringClass* dest, int32_t initialAppendCapacity) : dest_(dest) { if (initialAppendCapacity > 0 && static_cast<uint32_t>(initialAppendCapacity) > dest->capacity() - dest->length()) { dest->reserve(dest->length() + initialAppendCapacity); } } /** * Append "bytes[0,n-1]" to this. * @param data the pointer to the bytes * @param n the number of bytes; must be non-negative * @stable ICU 4.2 */ virtual void Append(const char* data, int32_t n) override { dest_->append(data, n); } private: StringClass* dest_; StringByteSink() = delete; StringByteSink(const StringByteSink &) = delete; StringByteSink &operator=(const StringByteSink &) = delete; }; U_NAMESPACE_END #endif /* U_SHOW_CPLUSPLUS_API */ #endif // __BYTESTREAM_H__