1 files changed, 1 insertions, 0 deletions
diff --git a/src/corelib/tools/qvarlengtharray.h b/src/corelib/tools/qvarlengtharray.h
index c73d6bfa43..9879d55967 100644
--- a/src/corelib/tools/qvarlengtharray.h
+++ b/src/corelib/tools/qvarlengtharray.h
@@ -357,6 +357,7 @@ Q_OUTOFLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::realloc(int asize, int a
     int osize = s;
 
     const int copySize = qMin(asize, osize);
+    Q_ASSUME(copySize >= 0);
     if (aalloc != a) {
         if (aalloc > Prealloc) {
             T* newPtr = reinterpret_cast<T *>(malloc(aalloc * sizeof(T)));