448674a68d
QHash::squeeze() was unconditionally calling reserve(0), which is always allocating memory (even for 0 size). This was leading to a confusing situation when calling squeeze() on a default-constructed container with 0 capacity() actually allocated memory. This is very misleading, as squeeze() is supposed to free unneeded memory, not to allocate more. This patch adds a check for non-zero capacity. As a result, nothing is done for default-constructed container. Note that this patch also affects the QSet::squeeze() behavior, because QSet uses QHash as its underlying data type. Task-number: QTBUG-91736 Change-Id: Ib1c3c8b7b3de6ddeefea0e70b1ec71803e8fd3b3 Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Andreas Buhr <andreas.buhr@qt.io> (cherry picked from commit b095d268788343b67a3995db7148dcc3af9bde1a) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>