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Avoid undefined left shift of negative value

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Change-Id: If4e7f6fca3f6afbbeaa79e00706be08d674e2aeb
This commit is contained in:
Stephan Bergmann
2014-05-28 08:52:52 +02:00
parent 6e7986a2fc
commit ce583af689
1 changed files with 8 additions and 5 deletions
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13
i18nutil/source/utility/casefolding.cxx
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@@ -79,12 +79,14 @@ Mapping& casefolding::getConditionalValue(const sal_Unicode* str, sal_Int32 pos,
Mapping& casefolding::getValue(const sal_Unicode* str, sal_Int32 pos, sal_Int32 len, Locale& aLocale, sal_uInt8 nMappingType) throw (RuntimeException)
{
static Mapping dummy = { 0, 1, { 0, 0, 0 } };
sal_Int16 address = CaseMappingIndex[str[pos] >> 8] << 8;
static Mapping dummy = { 0, 1, { 0, 0, 0 } };
sal_Int16 address = CaseMappingIndex[str[pos] >> 8];
dummy.map[0] = str[pos];
dummy.map[0] = str[pos];
if (address >= 0 && (CaseMappingValue[address += (str[pos] & 0xFF)].type & nMappingType)) {
if (address >= 0) {
address = (address << 8) + (str[pos] & 0xFF);
if (CaseMappingValue[address].type & nMappingType) {
sal_uInt8 type = CaseMappingValue[address].type;
if (type & ValueTypeNotValue) {
if (CaseMappingValue[address].value == 0)
@@ -105,7 +107,8 @@ Mapping& casefolding::getValue(const sal_Unicode* str, sal_Int32 pos, sal_Int32
} else
dummy.map[0] = CaseMappingValue[address].value;
}
return dummy;
}
return dummy;
}
inline bool SAL_CALL