1 files changed, 12 insertions, 12 deletions

diff --git a/src/corelib/tools/qregexp.cpp b/src/corelib/tools/qregexp.cpp
index d970843dea..128df84053 100644
--- a/src/corelib/tools/qregexp.cpp
+++ b/src/corelib/tools/qregexp.cpp
@@ -822,7 +822,7 @@ static QString wc2rx(const QString &wc_str, const bool enableEscaping)
                 if (wc[i] == QLatin1Char('^'))
                     rx += wc[i++];
                 if (i < wclen) {
-                    if (rx[i] == QLatin1Char(']'))
+                    if (wc[i] == QLatin1Char(']'))
                         rx += wc[i++];
                     while (i < wclen && wc[i] != QLatin1Char(']')) {
                         if (wc[i] == QLatin1Char('\\'))
@@ -937,10 +937,10 @@ struct QRegExpMatchState
 
     const QRegExpEngine *eng;
 
-    inline QRegExpMatchState() : bigArray(0), captured(0) {}
+    inline QRegExpMatchState() : bigArray(nullptr), captured(nullptr) {}
     inline ~QRegExpMatchState() { free(bigArray); }
 
-    void drain() { free(bigArray); bigArray = 0; captured = 0; } // to save memory
+    void drain() { free(bigArray); bigArray = nullptr; captured = nullptr; } // to save memory
     void prepareForMatch(QRegExpEngine *eng);
     void match(const QChar *str, int len, int pos, bool minimal,
         bool oneTest, int caretIndex);
@@ -1428,7 +1428,7 @@ void QRegExpMatchState::match(const QChar *str0, int len0, int pos0,
 #endif
     {
         in = str0;
-        if (in == 0)
+        if (in == nullptr)
             in = &char_null;
         pos = pos0;
         caretPos = caretIndex;
@@ -1707,7 +1707,7 @@ void QRegExpEngine::dump() const
 
 void QRegExpEngine::setup()
 {
-    ref.store(1);
+    ref.storeRelaxed(1);
 #ifndef QT_NO_REGEXP_CAPTURE
     f.resize(32);
     nf = 0;
@@ -2910,7 +2910,7 @@ int QRegExpEngine::getEscape()
 #ifndef QT_NO_REGEXP_ESCAPE
     if ((prevCh & ~0xff) == 0) {
         const char *p = strchr(tab, prevCh);
-        if (p != 0)
+        if (p != nullptr)
             return Tok_Char | backTab[p - tab];
     }
 #endif
@@ -3530,7 +3530,7 @@ int QRegExpEngine::parse(const QChar *pattern, int len)
 #endif
     box.cat(middleBox);
     box.cat(rightBox);
-    yyCharClass.reset(0);
+    yyCharClass.reset();
 
 #ifndef QT_NO_REGEXP_CAPTURE
     for (int i = 0; i < nf; ++i) {
@@ -3608,7 +3608,7 @@ int QRegExpEngine::parse(const QChar *pattern, int len)
 void QRegExpEngine::parseAtom(Box *box)
 {
 #ifndef QT_NO_REGEXP_LOOKAHEAD
-    QRegExpEngine *eng = 0;
+    QRegExpEngine *eng = nullptr;
     bool neg;
     int len;
 #endif
@@ -3805,9 +3805,9 @@ struct QRegExpPrivate
     QRegExpMatchState matchState;
 
     inline QRegExpPrivate()
-        : eng(0), engineKey(QString(), QRegExp::RegExp, Qt::CaseSensitive), minimal(false) { }
+        : eng(nullptr), engineKey(QString(), QRegExp::RegExp, Qt::CaseSensitive), minimal(false) { }
     inline QRegExpPrivate(const QRegExpEngineKey &key)
-        : eng(0), engineKey(key), minimal(false) {}
+        : eng(nullptr), engineKey(key), minimal(false) {}
 };
 
 #if !defined(QT_NO_REGEXP_OPTIM)
@@ -3886,9 +3886,9 @@ static void prepareEngineForMatch(QRegExpPrivate *priv, const QString &str)
 
 static void invalidateEngine(QRegExpPrivate *priv)
 {
-    if (priv->eng != 0) {
+    if (priv->eng) {
         derefEngine(priv->eng, priv->engineKey);
-        priv->eng = 0;
+        priv->eng = nullptr;
         priv->matchState.drain();
     }
 }