QtCore: use QStringBuilder in more places

Change-Id: I1a2016039c6cfa35505b987b6d4627bf806500ba
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>

2 files changed, 7 insertions, 20 deletions

diff --git a/src/corelib/io/qprocess.cpp b/src/corelib/io/qprocess.cpp
index 8ee8d0b703..8fbe96adb9 100644
--- a/src/corelib/io/qprocess.cpp
+++ b/src/corelib/io/qprocess.cpp
@@ -156,16 +156,8 @@ QStringList QProcessEnvironmentPrivate::toList() const
 {
     QStringList result;
     result.reserve(hash.size());
-    Hash::ConstIterator it = hash.constBegin(),
-                       end = hash.constEnd();
-    for ( ; it != end; ++it) {
-        QString data = nameToString(it.key());
-        QString value = valueToString(it.value());
-        data.reserve(data.length() + value.length() + 1);
-        data.append(QLatin1Char('='));
-        data.append(value);
-        result << data;
-    }
+    for (Hash::const_iterator it = hash.cbegin(), end = hash.cend(); it != end; ++it)
+        result << nameToString(it.key()) + QLatin1Char('=') + valueToString(it.value());
     return result;
 }
 
diff --git a/src/corelib/io/qtldurl.cpp b/src/corelib/io/qtldurl.cpp
index d68d0ddf46..265055083e 100644
--- a/src/corelib/io/qtldurl.cpp
+++ b/src/corelib/io/qtldurl.cpp
@@ -99,19 +99,14 @@ Q_CORE_EXPORT bool qIsEffectiveTLD(const QString &domain)
     if (containsTLDEntry(domain))
         return true;
 
-    if (domain.contains(QLatin1Char('.'))) {
-        int count = domain.size() - domain.indexOf(QLatin1Char('.'));
-        QString wildCardDomain;
-        wildCardDomain.reserve(count + 1);
-        wildCardDomain.append(QLatin1Char('*'));
-        wildCardDomain.append(domain.right(count));
+    const int dot = domain.indexOf(QLatin1Char('.'));
+    if (dot >= 0) {
+        int count = domain.size() - dot;
+        QString wildCardDomain = QLatin1Char('*') + domain.rightRef(count);
         // 2. if table contains '*.bar.com',
         // test if table contains '!foo.bar.com'
         if (containsTLDEntry(wildCardDomain)) {
-            QString exceptionDomain;
-            exceptionDomain.reserve(domain.size() + 1);
-            exceptionDomain.append(QLatin1Char('!'));
-            exceptionDomain.append(domain);
+            QString exceptionDomain = QLatin1Char('!') + domain;
             return (! containsTLDEntry(exceptionDomain));
         }
     }