Binary compatibility report for the ICU4C library between 51.1 and 51.2 versions on x86

Test Info

Library Name	ICU4C
Version #1	51.1
Version #2	51.2
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	174
Total Shared Libraries	8
Total Symbols / Types	3813 / 1315
Verdict	Incompatible (0.1%)

Problem Summary

	Severity	Count
Added Symbols	-	1
Removed Symbols	High	0
Problems with Data Types	High	1
	Medium	0
	Low	0
Problems with Symbols	High	0
	Medium	0
	Low	0
Problems with Constants	Low	0
Other Changes in Constants	-	3

Added Symbols (1)

LayoutEngine.h, libicule.so.51.2
namespace icu_51
LayoutEngine::getFontTable ( LETag tableTag, size_t& length ) const

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Problems with Data Types, High Severity (1)

	Change	Effect
1	Virtual method LayoutEngine::getFontTable ( LETag, size_t& ) const has been added to this class.	The layout of v-table has been changed. Call of any virtual method at higher position in this class or its subclasses may result in crash or incorrect behavior of applications.

Offset	Virtual Table (Old) - 14 entries	Virtual Table (New) - 15 entries
0	(int (*)(...))0	(int (*)(...))0
4	(int (*)(...))(& typeinfo)	(int (*)(...))(& typeinfo)
8	~LayoutEngine	~LayoutEngine
12	~LayoutEngine	~LayoutEngine
16	LayoutEngine::getDynamicClassID	LayoutEngine::getDynamicClassID
20	LayoutEngine::characterProcessing	LayoutEngine::characterProcessing
24	LayoutEngine::computeGlyphs	LayoutEngine::computeGlyphs
28	LayoutEngine::positionGlyphs	LayoutEngine::positionGlyphs
32	LayoutEngine::adjustGlyphPositions	LayoutEngine::adjustGlyphPositions
36	LayoutEngine::getFontTable	LayoutEngine::getFontTable
40	LayoutEngine::mapCharsToGlyphs	LayoutEngine::getFontTable
44	LayoutEngine::layoutChars	LayoutEngine::mapCharsToGlyphs
48	LayoutEngine::getGlyphs	LayoutEngine::layoutChars
52	LayoutEngine::reset	LayoutEngine::getGlyphs
56		LayoutEngine::reset

LayoutEngine.h
namespace icu_51
[+] class LayoutEngine (1)

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Other Changes in Constants (3)

	Change	Effect
1	The constant kQuestionmarkTableTag with value 0x3F3F3F3FUL has been added.	No effect.

	Change	Effect
1	The constant kTildeTableTag with value 0x7e7e7e7eUL has been added.	No effect.

	Change	Effect
1	The constant LE_ASSERT_BAD_FONT with value 0 has been added.	No effect.

LETableReference.h
[+] kQuestionmarkTableTag
[+] kTildeTableTag

LETypes.h
[+] LE_ASSERT_BAD_FONT

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Header Files (174)

alphaindex.h
appendable.h
basictz.h
brkiter.h
bytestream.h
bytestrie.h
bytestriebuilder.h
calendar.h
caniter.h
chariter.h
choicfmt.h
coleitr.h
coll.h
compactdecimalformat.h
curramt.h
currpinf.h
currunit.h
datefmt.h
dbbi.h
dcfmtsym.h
decimfmt.h
docmain.h
dtfmtsym.h
dtintrv.h
dtitvfmt.h
dtitvinf.h
dtptngen.h
dtrule.h
enumset.h
errorcode.h
fieldpos.h
fmtable.h
format.h
fpositer.h
gender.h
gregocal.h
icudataver.h
icuplug.h
idna.h
LayoutEngine.h
LEFontInstance.h
LEGlyphFilter.h
LEGlyphStorage.h
LEInsertionList.h
LELanguages.h
LEScripts.h
LESwaps.h
LETypes.h
listformatter.h
localpointer.h
locdspnm.h
locid.h
loengine.h
measfmt.h
measunit.h
measure.h
messagepattern.h
msgfmt.h
normalizer2.h
normlzr.h
numfmt.h
numsys.h
ParagraphLayout.h
parseerr.h
parsepos.h
platform.h
playout.h
plruns.h
plurfmt.h
plurrule.h
ptypes.h
putil.h
rbbi.h
rbnf.h
rbtz.h
regex.h
region.h
rep.h
resbund.h
RunArrays.h
schriter.h
search.h
selfmt.h
simpletz.h
smpdtfmt.h
sortkey.h
std_string.h
strenum.h
stringpiece.h
stringtriebuilder.h
stsearch.h
symtable.h
tblcoll.h
timezone.h
tmunit.h
tmutamt.h
tmutfmt.h
translit.h
tzfmt.h
tznames.h
tzrule.h
tztrans.h
ubidi.h
ubrk.h
ucal.h
ucasemap.h
ucat.h
uchar.h
ucharstrie.h
ucharstriebuilder.h
uchriter.h
uclean.h
ucnv.h
ucnv_cb.h
ucnv_err.h
ucnvsel.h
ucol.h
ucoleitr.h
uconfig.h
ucsdet.h
ucurr.h
udat.h
udata.h
udateintervalformat.h
udatpg.h
udisplaycontext.h
uenum.h
ugender.h
uidna.h
uiter.h
uldnames.h
uloc.h
ulocdata.h
umachine.h
umisc.h
umsg.h
unifilt.h
unifunct.h
unimatch.h
unirepl.h
uniset.h
unistr.h
unorm.h
unorm2.h
unum.h
uobject.h
upluralrules.h
uregex.h
urep.h
ures.h
uscript.h
usearch.h
uset.h
usetiter.h
ushape.h
uspoof.h
usprep.h
ustdio.h
ustream.h
ustring.h
ustringtrie.h
utext.h
utf.h
utf16.h
utf32.h
utf8.h
utf_old.h
utmscale.h
utrace.h
utrans.h
utypes.h
uvernum.h
uversion.h
vtzone.h

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Shared Libraries (8)

libicudata.so.51.1
libicui18n.so.51.1
libicuio.so.51.1
libicule.so.51.1
libiculx.so.51.1
libicutest.so.51.1
libicutu.so.51.1
libicuuc.so.51.1

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