diff --git a/src/corelib/tools/qvarlengtharray.h b/src/corelib/tools/qvarlengtharray.h
index 44c5d8beacc..b4b9c96fb3c 100644
--- a/src/corelib/tools/qvarlengtharray.h
+++ b/src/corelib/tools/qvarlengtharray.h
@@ -796,8 +796,8 @@ Q_OUTOFLINE_TEMPLATE void QVLABase<T>::assign_impl(qsizetype prealloc, void *arr
         ++first;
     }
 
-    qsizetype n = 0;
-    if constexpr (IsFwdIt && noexcept(T(*first))) {
+    qsizetype n;
+    if constexpr (IsFwdIt) {
         dst = std::uninitialized_copy(first, last, dst);
         n = dst - begin();
         if (n > s) // otherwise: readjust 's' in erase() later
diff --git a/src/corelib/tools/qvarlengtharray.qdoc b/src/corelib/tools/qvarlengtharray.qdoc
index 3ad8a828570..2e727c5d4a9 100644
--- a/src/corelib/tools/qvarlengtharray.qdoc
+++ b/src/corelib/tools/qvarlengtharray.qdoc
@@ -109,7 +109,8 @@
     Constructs an array with the contents in the iterator range [\a first, \a last).
 
     This constructor only participates in overload resolution if
-    \c InputIterator models the \c std::input_iterator concept.
+    \c InputIterator meets the requirements of an
+    \l {https://en.cppreference.com/w/cpp/named_req/InputIterator} {LegacyInputIterator}.
 
     The value type of \c InputIterator must be convertible to \c T.
 */
@@ -1016,7 +1017,9 @@
     number of elements in the range exceeds the capacity of the container.
 
     This function overload only participates in overload resolution if
-    \c InputIterator models the \c std::input_iterator concept.
+    \c InputIterator meets the requirements of an
+    \l {https://en.cppreference.com/w/cpp/named_req/InputIterator} {LegacyInputIterator}.
+
     The behavior is undefined if either argument is an iterator into *this.
 */