[Libreoffice-commits] core.git: Branch 'libreoffice-4-1' - include/rtl sal/qa sal/rtl
Stephan Bergmann
sbergman at redhat.com
Thu Jun 6 06:43:57 PDT 2013
include/rtl/string.hxx | 6 ++----
include/rtl/ustring.hxx | 6 ++----
sal/qa/rtl/strings/test_strings_toint.cxx | 4 ----
sal/rtl/strtmpl.cxx | 24 ------------------------
4 files changed, 4 insertions(+), 36 deletions(-)
New commits:
commit 9bf6c83367cedb7be81bf67f30d2147d26c7a8c3
Author: Stephan Bergmann <sbergman at redhat.com>
Date: Thu Jun 6 15:30:14 2013 +0200
Revert overflow checks in O[U]String::toInt{32,64} again
...originally introduced with bd60d41176da540b01d7583cfe00637431967f39 "Handle
oveflow in O(U)String::toInt() functions." As pointed out by Noel Power, there
is existing code using toInt32(16) to read an effectively unsigned hex string
into a sal_Int32, which used to work fine with the wrap-around overflow but now
fails when toInt32 explicitly returns 0 for large values. See, e.g., use of
oox::AttributeList::getIntegerHex (indirectly calling OUString::toInt32) in
ColorScaleRule::importColor (sc/source/filter/oox/condformatbuffer.cxx).
To prevent any regressions in LO 4.1, remove the explicit checks from
toInt{32,64} again for now. (They were "merely" added as a general safety
measure, not to address some specific problem, IIRC.) On master, the approach
will rather be to introduce toUInt32 and adapt client code as necessary.
Change-Id: Id332cff18a99b8bd2dcccd7988b7aad3a9e98c4c
diff --git a/include/rtl/string.hxx b/include/rtl/string.hxx
index c834450..7228fe7 100644
--- a/include/rtl/string.hxx
+++ b/include/rtl/string.hxx
@@ -1336,8 +1336,7 @@ public:
@param radix the radix (between 2 and 36)
@return the int32 represented from this string.
- 0 if this string represents no number or one of too large
- magnitude.
+ 0 if this string represents no number.
*/
sal_Int32 toInt32( sal_Int16 radix = 10 ) const SAL_THROW(())
{
@@ -1351,8 +1350,7 @@ public:
@param radix the radix (between 2 and 36)
@return the int64 represented from this string.
- 0 if this string represents no number or one of too large
- magnitude.
+ 0 if this string represents no number.
*/
sal_Int64 toInt64( sal_Int16 radix = 10 ) const SAL_THROW(())
{
diff --git a/include/rtl/ustring.hxx b/include/rtl/ustring.hxx
index da5b909..06ba97b 100644
--- a/include/rtl/ustring.hxx
+++ b/include/rtl/ustring.hxx
@@ -1799,8 +1799,7 @@ public:
@param radix the radix (between 2 and 36)
@return the int32 represented from this string.
- 0 if this string represents no number or one of too large
- magnitude.
+ 0 if this string represents no number.
*/
sal_Int32 toInt32( sal_Int16 radix = 10 ) const SAL_THROW(())
{
@@ -1814,8 +1813,7 @@ public:
@param radix the radix (between 2 and 36)
@return the int64 represented from this string.
- 0 if this string represents no number or one of too large
- magnitude.
+ 0 if this string represents no number.
*/
sal_Int64 toInt64( sal_Int16 radix = 10 ) const SAL_THROW(())
{
diff --git a/sal/qa/rtl/strings/test_strings_toint.cxx b/sal/qa/rtl/strings/test_strings_toint.cxx
index 4a4f549..102d30e 100644
--- a/sal/qa/rtl/strings/test_strings_toint.cxx
+++ b/sal/qa/rtl/strings/test_strings_toint.cxx
@@ -27,16 +27,13 @@ private:
CPPUNIT_TEST_SUITE_END();
void testToInt32Overflow() {
- CPPUNIT_ASSERT_EQUAL(sal_Int32(0), T("-2147483649").toInt32());
CPPUNIT_ASSERT_EQUAL(SAL_MIN_INT32, T("-2147483648").toInt32());
CPPUNIT_ASSERT_EQUAL(SAL_MIN_INT32 + 1, T("-2147483647").toInt32());
CPPUNIT_ASSERT_EQUAL(SAL_MAX_INT32 - 1, T("2147483646").toInt32());
CPPUNIT_ASSERT_EQUAL(SAL_MAX_INT32, T("2147483647").toInt32());
- CPPUNIT_ASSERT_EQUAL(sal_Int32(0), T("2147483648").toInt32());
}
void testToInt64Overflow() {
- CPPUNIT_ASSERT_EQUAL(sal_Int64(0), T("-9223372036854775809").toInt64());
CPPUNIT_ASSERT_EQUAL(
SAL_MIN_INT64, T("-9223372036854775808").toInt64());
CPPUNIT_ASSERT_EQUAL(
@@ -44,7 +41,6 @@ private:
CPPUNIT_ASSERT_EQUAL(
SAL_MAX_INT64 - 1, T("9223372036854775806").toInt64());
CPPUNIT_ASSERT_EQUAL(SAL_MAX_INT64, T("9223372036854775807").toInt64());
- CPPUNIT_ASSERT_EQUAL(sal_Int64(0), T("9223372036854775808").toInt64());
}
void testToUInt64Overflow() {
diff --git a/sal/rtl/strtmpl.cxx b/sal/rtl/strtmpl.cxx
index 78aa1f5..dd1effc 100644
--- a/sal/rtl/strtmpl.cxx
+++ b/sal/rtl/strtmpl.cxx
@@ -941,35 +941,11 @@ namespace {
bNeg = sal_False;
}
- T nDiv;
- sal_Int16 nMod;
- if ( bNeg )
- {
- nDiv = std::numeric_limits<T>::min() / nRadix;
- nMod = std::numeric_limits<T>::min() % nRadix;
- // Cater for C++03 implementations that round the quotient down
- // instead of truncating towards zero as mandated by C++11:
- if ( nMod > 0 )
- {
- --nDiv;
- nMod -= nRadix;
- }
- nDiv = -nDiv;
- nMod = -nMod;
- }
- else
- {
- nDiv = std::numeric_limits<T>::max() / nRadix;
- nMod = std::numeric_limits<T>::max() % nRadix;
- }
-
while ( *pStr )
{
nDigit = rtl_ImplGetDigit( IMPL_RTL_USTRCODE( *pStr ), nRadix );
if ( nDigit < 0 )
break;
- if( ( nMod < nDigit ? nDiv-1 : nDiv ) < n )
- return 0;
n *= nRadix;
n += nDigit;
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