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-rw-r--r--src/corelib/tools/qstring.cpp13
1 files changed, 8 insertions, 5 deletions
diff --git a/src/corelib/tools/qstring.cpp b/src/corelib/tools/qstring.cpp
index e1167fa..c8d641a 100644
--- a/src/corelib/tools/qstring.cpp
+++ b/src/corelib/tools/qstring.cpp
@@ -129,7 +129,7 @@ static inline bool qt_ends_with(const QChar *haystack, int haystackLen,
static int ucstricmp(const ushort *a, const ushort *ae, const ushort *b, const ushort *be)
{
if (a == b)
- return 0;
+ return (ae - be);
if (a == 0)
return 1;
if (b == 0)
@@ -141,7 +141,7 @@ static int ucstricmp(const ushort *a, const ushort *ae, const ushort *b, const u
uint alast = 0;
uint blast = 0;
- while (a != e) {
+ while (a < e) {
// qDebug() << hex << alast << blast;
// qDebug() << hex << "*a=" << *a << "alast=" << alast << "folded=" << foldCase (*a, alast);
// qDebug() << hex << "*b=" << *b << "blast=" << blast << "folded=" << foldCase (*b, blast);
@@ -170,7 +170,7 @@ static int ucstricmp(const ushort *a, const ushort *ae, const uchar *b)
if (b == 0)
return -1;
- while (a != ae && *b) {
+ while (a < ae && *b) {
int diff = foldCase(*a) - foldCase(*b);
if ((diff))
return diff;
@@ -4665,9 +4665,12 @@ int QString::compare_helper(const QChar *data1, int length1, QLatin1String s2,
return length1;
if (cs == Qt::CaseSensitive) {
- while (uc != e && *c && *uc == *c)
+ while (uc < e && *c && *uc == *c)
uc++, c++;
+ if (uc == e)
+ return -*c;
+
return *uc - *c;
} else {
return ucstricmp(uc, e, c);
@@ -7118,7 +7121,7 @@ QString QString::fromRawData(const QChar *unicode, int size)
*/
QString &QString::setRawData(const QChar *unicode, int size)
{
- if (d->ref != 1 || d->alloc) {
+ if (d->ref != 1 || (d->data == d->array && d->alloc)) {
*this = fromRawData(unicode, size);
} else {
#ifdef QT3_SUPPORT