2 files changed, 3 insertions, 7 deletions
diff --git a/src/corelib/tools/qhash.cpp b/src/corelib/tools/qhash.cpp
index 1b1d9af187..a8a461e868 100644
--- a/src/corelib/tools/qhash.cpp
+++ b/src/corelib/tools/qhash.cpp
@@ -617,12 +617,11 @@ void QHashData::dump()
             numBuckets);
     qDebug("    %p (fakeNode = %p)", this, fakeNext);
     for (int i = 0; i < numBuckets; ++i) {
-        QString line;
         Node *n = buckets[i];
         if (n != reinterpret_cast<Node *>(this)) {
-            line.sprintf("%d:", i);
+            QString line = QString::asprintf("%d:", i);
             while (n != reinterpret_cast<Node *>(this)) {
-                line += QString().sprintf(" -> [%p]", n);
+                line += QString::asprintf(" -> [%p]", n);
                 if (!n) {
                     line += " (CORRUPT)";
                     break;
diff --git a/src/corelib/tools/qvsnprintf.cpp b/src/corelib/tools/qvsnprintf.cpp
index e9590c3971..6f18d21d2b 100644
--- a/src/corelib/tools/qvsnprintf.cpp
+++ b/src/corelib/tools/qvsnprintf.cpp
@@ -69,10 +69,7 @@ int qvsnprintf(char *str, size_t n, const char *fmt, va_list ap)
     if (!str || !fmt)
         return -1;
 
-    QString buf;
-    buf.vsprintf(fmt, ap);
-
-    QByteArray ba = buf.toLocal8Bit();
+    const QByteArray ba = QString::vasprintf(fmt, ap).toLocal8Bit();
 
     if (n > 0) {
         size_t blen = qMin(size_t(ba.length()), size_t(n - 1));