QDuplicateTracker: accept the number of elements to reserve as a ctor argument

This prevents us from first reserve()ing Prealloc elements, and then
possibly reserve()ing a larger number, which leaves the first bucket
list's memory unused.

Consequently, deprecate reserve().

Change-Id: Ifc0a5a021097f4589557e7b5e45d9d0892797ade
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

1 files changed, 1 insertions, 2 deletions

diff --git a/qmake/library/proitems.cpp b/qmake/library/proitems.cpp
index ba817596c5..a8f4dfe039 100644
--- a/qmake/library/proitems.cpp
+++ b/qmake/library/proitems.cpp
@@ -404,8 +404,7 @@ void ProStringList::removeEmpty()
 
 void ProStringList::removeDuplicates()
 {
-    QDuplicateTracker<ProString> seen;
-    seen.reserve(size());
+    QDuplicateTracker<ProString> seen(size());
     removeIf([&](const ProString &s) { return seen.hasSeen(s); });
 }