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Size
Permission
Date
Action
alphaindex.h
26.52
KB
-rw-r--r--
2022-12-01 11:12
appendable.h
8.53
KB
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2022-12-01 11:12
basictz.h
9.86
KB
-rw-r--r--
2022-12-01 11:12
brkiter.h
27.81
KB
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2022-12-01 11:12
bytestream.h
10.75
KB
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2022-12-01 11:12
bytestrie.h
20.77
KB
-rw-r--r--
2022-12-01 11:12
bytestriebuilder.h
7.46
KB
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2022-12-01 11:12
calendar.h
105.88
KB
-rw-r--r--
2022-12-01 11:12
caniter.h
7.44
KB
-rw-r--r--
2022-12-01 11:12
casemap.h
25.33
KB
-rw-r--r--
2022-12-01 11:12
char16ptr.h
7.22
KB
-rw-r--r--
2022-12-01 11:12
chariter.h
24.06
KB
-rw-r--r--
2022-12-01 11:12
choicfmt.h
23.97
KB
-rw-r--r--
2022-12-01 11:12
coleitr.h
13.77
KB
-rw-r--r--
2022-12-01 11:12
coll.h
56.26
KB
-rw-r--r--
2022-12-01 11:12
compactdecimalformat.h
6.88
KB
-rw-r--r--
2022-12-01 11:12
curramt.h
3.78
KB
-rw-r--r--
2022-12-01 11:12
currpinf.h
7.3
KB
-rw-r--r--
2022-12-01 11:12
currunit.h
4.02
KB
-rw-r--r--
2022-12-01 11:12
datefmt.h
40.71
KB
-rw-r--r--
2022-12-01 11:12
dbbi.h
1.19
KB
-rw-r--r--
2022-12-01 11:12
dcfmtsym.h
20.61
KB
-rw-r--r--
2022-12-01 11:12
decimfmt.h
87.57
KB
-rw-r--r--
2022-12-01 11:12
docmain.h
7.21
KB
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2022-12-01 11:12
dtfmtsym.h
38.21
KB
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2022-12-01 11:12
dtintrv.h
3.84
KB
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2022-12-01 11:12
dtitvfmt.h
49.27
KB
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2022-12-01 11:12
dtitvinf.h
18.63
KB
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2022-12-01 11:12
dtptngen.h
28.84
KB
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2022-12-01 11:12
dtrule.h
8.69
KB
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2022-12-01 11:12
edits.h
20.74
KB
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2022-12-01 11:12
enumset.h
2.08
KB
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2022-12-01 11:12
errorcode.h
4.84
KB
-rw-r--r--
2022-12-01 11:12
fieldpos.h
8.7
KB
-rw-r--r--
2022-12-01 11:12
filteredbrk.h
5.37
KB
-rw-r--r--
2022-12-01 11:12
fmtable.h
24.43
KB
-rw-r--r--
2022-12-01 11:12
format.h
12.5
KB
-rw-r--r--
2022-12-01 11:12
formattedvalue.h
9.75
KB
-rw-r--r--
2022-12-01 11:12
fpositer.h
3.03
KB
-rw-r--r--
2022-12-01 11:12
gender.h
3.33
KB
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2022-12-01 11:12
gregocal.h
31.88
KB
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2022-12-01 11:12
icudataver.h
1.02
KB
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2022-12-01 11:12
icuplug.h
11.83
KB
-rw-r--r--
2022-12-01 11:12
idna.h
12.7
KB
-rw-r--r--
2022-12-01 11:12
listformatter.h
8.79
KB
-rw-r--r--
2022-12-01 11:12
localebuilder.h
11.08
KB
-rw-r--r--
2022-12-01 11:12
localematcher.h
26.84
KB
-rw-r--r--
2022-12-01 11:12
localpointer.h
19.36
KB
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2022-12-01 11:12
locdspnm.h
7.12
KB
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2022-12-01 11:12
locid.h
47.66
KB
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2022-12-01 11:12
measfmt.h
11.42
KB
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2022-12-01 11:12
measunit.h
104.97
KB
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2022-12-01 11:12
measure.h
4.33
KB
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2022-12-01 11:12
messagepattern.h
33.71
KB
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2022-12-01 11:12
msgfmt.h
44.22
KB
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2022-12-01 11:12
normalizer2.h
33.66
KB
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2022-12-01 11:12
normlzr.h
30.95
KB
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2022-12-01 11:12
nounit.h
2.25
KB
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2022-12-01 11:12
numberformatter.h
94.15
KB
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2022-12-01 11:12
numberrangeformatter.h
25.19
KB
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2022-12-01 11:12
numfmt.h
49.84
KB
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2022-12-01 11:12
numsys.h
7.33
KB
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2022-12-01 11:12
parseerr.h
3.08
KB
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2022-12-01 11:12
parsepos.h
5.57
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2022-12-01 11:12
platform.h
28.09
KB
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2022-12-01 11:12
plurfmt.h
25.24
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2022-12-01 11:12
plurrule.h
20.82
KB
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2022-12-01 11:12
ptypes.h
3.49
KB
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2022-12-01 11:12
putil.h
6.32
KB
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2022-12-01 11:12
rbbi.h
28.64
KB
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2022-12-01 11:12
rbnf.h
48.85
KB
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2022-12-01 11:12
rbtz.h
15.77
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2022-12-01 11:12
regex.h
84.36
KB
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2022-12-01 11:12
region.h
9.18
KB
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2022-12-01 11:12
reldatefmt.h
22.22
KB
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2022-12-01 11:12
rep.h
9.37
KB
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2022-12-01 11:12
resbund.h
18.08
KB
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2022-12-01 11:12
schriter.h
6.36
KB
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2022-12-01 11:12
scientificnumberformatter.h
6.43
KB
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2022-12-01 11:12
search.h
22.22
KB
-rw-r--r--
2022-12-01 11:12
selfmt.h
14.34
KB
-rw-r--r--
2022-12-01 11:12
simpleformatter.h
12.59
KB
-rw-r--r--
2022-12-01 11:12
simpletz.h
45.64
KB
-rw-r--r--
2022-12-01 11:12
smpdtfmt.h
71.07
KB
-rw-r--r--
2022-12-01 11:12
sortkey.h
11.18
KB
-rw-r--r--
2022-12-01 11:12
std_string.h
1.05
KB
-rw-r--r--
2022-12-01 11:12
strenum.h
9.92
KB
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2022-12-01 11:12
stringoptions.h
5.79
KB
-rw-r--r--
2022-12-01 11:12
stringpiece.h
10.05
KB
-rw-r--r--
2022-12-01 11:12
stringtriebuilder.h
15.47
KB
-rw-r--r--
2022-12-01 11:12
stsearch.h
21.41
KB
-rw-r--r--
2022-12-01 11:12
symtable.h
4.27
KB
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2022-12-01 11:12
tblcoll.h
36.92
KB
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2022-12-01 11:12
timezone.h
43.81
KB
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2022-12-01 11:12
tmunit.h
3.4
KB
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2022-12-01 11:12
tmutamt.h
4.91
KB
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2022-12-01 11:12
tmutfmt.h
7.42
KB
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2022-12-01 11:12
translit.h
65.82
KB
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2022-12-01 11:12
tzfmt.h
42.93
KB
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2022-12-01 11:12
tznames.h
16.85
KB
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2022-12-01 11:12
tzrule.h
35.6
KB
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2022-12-01 11:12
tztrans.h
6.13
KB
-rw-r--r--
2022-12-01 11:12
ubidi.h
89.61
KB
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2022-12-01 11:12
ubiditransform.h
12.7
KB
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2022-12-01 11:12
ubrk.h
24.43
KB
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2022-12-01 11:12
ucal.h
60.68
KB
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2022-12-01 11:12
ucasemap.h
15.21
KB
-rw-r--r--
2022-12-01 11:12
ucat.h
5.35
KB
-rw-r--r--
2022-12-01 11:12
uchar.h
144.64
KB
-rw-r--r--
2022-12-01 11:12
ucharstrie.h
22.53
KB
-rw-r--r--
2022-12-01 11:12
ucharstriebuilder.h
7.47
KB
-rw-r--r--
2022-12-01 11:12
uchriter.h
13.42
KB
-rw-r--r--
2022-12-01 11:12
uclean.h
11.2
KB
-rw-r--r--
2022-12-01 11:12
ucnv.h
83.46
KB
-rw-r--r--
2022-12-01 11:12
ucnv_cb.h
6.58
KB
-rw-r--r--
2022-12-01 11:12
ucnv_err.h
20.98
KB
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2022-12-01 11:12
ucnvsel.h
6.19
KB
-rw-r--r--
2022-12-01 11:12
ucol.h
61.95
KB
-rw-r--r--
2022-12-01 11:12
ucoleitr.h
9.82
KB
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2022-12-01 11:12
uconfig.h
12.07
KB
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2022-12-01 11:12
ucpmap.h
5.53
KB
-rw-r--r--
2022-12-01 11:12
ucptrie.h
22.5
KB
-rw-r--r--
2022-12-01 11:12
ucsdet.h
14.69
KB
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2022-12-01 11:12
ucurr.h
16.72
KB
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2022-12-01 11:12
udat.h
62.4
KB
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2022-12-01 11:12
udata.h
15.63
KB
-rw-r--r--
2022-12-01 11:12
udateintervalformat.h
11.93
KB
-rw-r--r--
2022-12-01 11:12
udatpg.h
30.18
KB
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2022-12-01 11:12
udisplaycontext.h
5.94
KB
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2022-12-01 11:12
uenum.h
7.79
KB
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2022-12-01 11:12
ufieldpositer.h
4.41
KB
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2022-12-01 11:12
uformattable.h
10.97
KB
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2022-12-01 11:12
uformattedvalue.h
12.3
KB
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2022-12-01 11:12
ugender.h
2.06
KB
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2022-12-01 11:12
uidna.h
33.43
KB
-rw-r--r--
2022-12-01 11:12
uiter.h
22.75
KB
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2022-12-01 11:12
uldnames.h
10.48
KB
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2022-12-01 11:12
ulistformatter.h
10.78
KB
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2022-12-01 11:12
uloc.h
54.63
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2022-12-01 11:12
ulocdata.h
11.3
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2022-12-01 11:12
umachine.h
16.05
KB
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2022-12-01 11:12
umisc.h
1.33
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2022-12-01 11:12
umsg.h
24.25
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2022-12-01 11:12
umutablecptrie.h
8.29
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2022-12-01 11:12
unifilt.h
4
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2022-12-01 11:12
unifunct.h
4.05
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2022-12-01 11:12
unimatch.h
6.1
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2022-12-01 11:12
unirepl.h
3.38
KB
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2022-12-01 11:12
uniset.h
66.46
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2022-12-01 11:12
unistr.h
170.53
KB
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2022-12-01 11:12
unorm.h
20.55
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2022-12-01 11:12
unorm2.h
24.68
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2022-12-01 11:12
unounclass.h
735
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2022-12-01 11:12
unum.h
55.31
KB
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2022-12-01 11:12
unumberformatter.h
30.28
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2022-12-01 11:12
unumberrangeformatter.h
15.37
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2022-12-01 11:12
unumsys.h
7.26
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2022-12-01 11:12
uobject.h
10.68
KB
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2022-12-01 11:12
upluralrules.h
8.79
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2022-12-01 11:12
uregex.h
71.99
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2022-12-01 11:12
uregion.h
9.81
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2022-12-01 11:12
ureldatefmt.h
17.04
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2022-12-01 11:12
urename.h
135
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2022-12-01 11:12
urep.h
5.38
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2022-12-01 11:12
ures.h
36.54
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2022-12-01 11:12
uscript.h
27.63
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2022-12-01 11:12
usearch.h
39.21
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2022-12-01 11:12
uset.h
44.29
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2022-12-01 11:12
usetiter.h
9.68
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2022-12-01 11:12
ushape.h
18
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2022-12-01 11:12
uspoof.h
65.84
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2022-12-01 11:12
usprep.h
8.19
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2022-12-01 11:12
ustdio.h
38.56
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2022-12-01 11:12
ustream.h
1.89
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2022-12-01 11:12
ustring.h
72.36
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2022-12-01 11:12
ustringtrie.h
3.15
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2022-12-01 11:12
utext.h
58.08
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2022-12-01 11:12
utf.h
7.87
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2022-12-01 11:12
utf16.h
23.35
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2022-12-01 11:12
utf32.h
763
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2022-12-01 11:12
utf8.h
30.83
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2022-12-01 11:12
utf_old.h
45.83
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2022-12-01 11:12
utmscale.h
13.78
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2022-12-01 11:12
utrace.h
17.18
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2022-12-01 11:12
utrans.h
25.54
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2022-12-01 11:12
utypes.h
31.06
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2022-12-01 11:12
uvernum.h
6.68
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2022-12-01 11:12
uversion.h
5.99
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2022-12-01 11:12
vtzone.h
20.74
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2022-12-01 11:12
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 && (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__