From 45e31a153cf65390041059eb0a524ac296992629 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Mon, 5 Jul 2021 15:55:41 +0800
Subject: [PATCH] Reserve space for vector

---
 src/base/bittorrent/torrentimpl.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/base/bittorrent/torrentimpl.cpp b/src/base/bittorrent/torrentimpl.cpp
index 3b86e8ee1..a697bb30e 100644
--- a/src/base/bittorrent/torrentimpl.cpp
+++ b/src/base/bittorrent/torrentimpl.cpp
@@ -797,7 +797,8 @@ QVector<DownloadPriority> TorrentImpl::filePriorities() const
     const std::vector<lt::download_priority_t> fp = m_nativeHandle.get_file_priorities();
 
     QVector<DownloadPriority> ret;
-    std::transform(fp.cbegin(), fp.cend(), std::back_inserter(ret), [](lt::download_priority_t priority)
+    ret.reserve(fp.size());
+    std::transform(fp.cbegin(), fp.cend(), std::back_inserter(ret), [](const lt::download_priority_t priority)
     {
         return static_cast<DownloadPriority>(toLTUnderlyingType(priority));
     });