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-rw-r--r--src/corelib/text/qstringiterator_p.h13
1 files changed, 8 insertions, 5 deletions
diff --git a/src/corelib/text/qstringiterator_p.h b/src/corelib/text/qstringiterator_p.h
index 219589b6e4..b31c7673c2 100644
--- a/src/corelib/text/qstringiterator_p.h
+++ b/src/corelib/text/qstringiterator_p.h
@@ -61,6 +61,8 @@ class QStringIterator
{
QString::const_iterator i, pos, e;
Q_STATIC_ASSERT((std::is_same<QString::const_iterator, const QChar *>::value));
+ static bool less(const QChar *lhs, const QChar *rhs) noexcept
+ { return std::less<const QChar *>{}(lhs, rhs); }
public:
explicit QStringIterator(QStringView string, qsizetype idx = 0)
: i(string.begin()),
@@ -95,7 +97,8 @@ public:
inline void setPosition(QString::const_iterator position)
{
- Q_ASSERT_X(i <= position && position <= e, Q_FUNC_INFO, "position out of bounds");
+ Q_ASSERT_X(!less(position, i) && !less(e, position),
+ Q_FUNC_INFO, "position out of bounds");
pos = position;
}
@@ -103,7 +106,7 @@ public:
inline bool hasNext() const
{
- return pos < e;
+ return less(pos, e);
}
inline void advance()
@@ -166,7 +169,7 @@ public:
const QChar uc = *pos++;
if (Q_UNLIKELY(uc.isSurrogate())) {
- if (Q_LIKELY(uc.isHighSurrogate() && pos < e && pos->isLowSurrogate()))
+ if (Q_LIKELY(uc.isHighSurrogate() && hasNext() && pos->isLowSurrogate()))
return QChar::surrogateToUcs4(uc, *pos++);
return invalidAs;
}
@@ -178,7 +181,7 @@ public:
inline bool hasPrevious() const
{
- return pos > i;
+ return less(i, pos);
}
inline void recede()
@@ -241,7 +244,7 @@ public:
const QChar uc = *--pos;
if (Q_UNLIKELY(uc.isSurrogate())) {
- if (Q_LIKELY(uc.isLowSurrogate() && pos > i && pos[-1].isHighSurrogate()))
+ if (Q_LIKELY(uc.isLowSurrogate() && hasPrevious() && pos[-1].isHighSurrogate()))
return QChar::surrogateToUcs4(*--pos, uc);
return invalidAs;
}