From 529c1ec9f4c581ba7647fdd47916625b73f5de59 Mon Sep 17 00:00:00 2001
From: Chocobo1 <Chocobo1@users.noreply.github.com>
Date: Wed, 2 Nov 2022 16:35:40 +0800
Subject: [PATCH] Reserve space before appending elements

---
 src/gui/transferlistmodel.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/gui/transferlistmodel.cpp b/src/gui/transferlistmodel.cpp
index a1a372e30..14c8c4cb8 100644
--- a/src/gui/transferlistmodel.cpp
+++ b/src/gui/transferlistmodel.cpp
@@ -632,9 +632,12 @@ bool TransferListModel::setData(const QModelIndex &index, const QVariant &value,
 
 void TransferListModel::addTorrents(const QVector<BitTorrent::Torrent *> &torrents)
 {
-    int row = m_torrentList.size();
-    beginInsertRows({}, row, (row + torrents.size()));
+    qsizetype row = m_torrentList.size();
+    const qsizetype total = row + torrents.size();
 
+    beginInsertRows({}, row, total);
+
+    m_torrentList.reserve(total);
     for (BitTorrent::Torrent *torrent : torrents)
     {
         Q_ASSERT(!m_torrentMap.contains(torrent));