code: Small cleanups and fixes to lambda captures (#6191)

Co-authored-by: v1993 <v19930312@gmail.com>
Co-authored-by: Morph <39850852+Morph1984@users.noreply.github.com>

src/citra_qt/game_list_p.h

@@ -320,6 +320,12 @@ public:
         setData(type(), TypeRole);
         setData(size_bytes, SizeRole);
     }
+    explicit GameListItemSize(const QString& string) {
+        // This is required to avoid incorrect virtual function call in
+        // GameListItem's constructor
+        setText(string);
+        setData(string, SortRole);
+    }
 
     void setData(const QVariant& value, int role) override {
         // By specializing setData for SizeRole, we can ensure that the numerical and string

src/citra_qt/multiplayer/lobby.cpp

@@ -30,12 +30,12 @@ Lobby::Lobby(QWidget* parent, QStandardItemModel* list,
     ui->setupUi(this);
 
     // setup the watcher for background connections
-    watcher = new QFutureWatcher<void>;
+    watcher = new QFutureWatcher<void>(this);
 
     model = new QStandardItemModel(ui->room_list);
 
     // Create a proxy to the game list to get the list of games owned
-    game_list = new QStandardItemModel;
+    game_list = new QStandardItemModel(this);
     UpdateGameList(list);
 
     proxy = new LobbyFilterProxyModel(this, game_list);

src/citra_qt/updater/updater.cpp

@@ -156,7 +156,7 @@ void UpdaterPrivate::StopUpdateCheck(int delay, bool async) {
             QTimer* timer = new QTimer(this);
             timer->setSingleShot(true);
 
-            connect(timer, &QTimer::timeout, [=]() {
+            connect(timer, &QTimer::timeout, [this, timer]() {
                 StopUpdateCheck(0, false);
                 timer->deleteLater();
             });

src/citra_qt/util/spinbox.cpp

@@ -76,10 +76,12 @@ void CSpinBox::stepBy(int steps) {
     }*/
 
     // Increment "new_value" by "steps", and perform annoying overflow checks, too.
-    if (steps < 0 && new_value + steps > new_value) {
+    constexpr qint64 qint64_min = std::numeric_limits<qint64>::min();
-        new_value = std::numeric_limits<qint64>::min();
+    constexpr qint64 qint64_max = std::numeric_limits<qint64>::max();
-    } else if (steps > 0 && new_value + steps < new_value) {
+    if (steps < 0 && new_value < qint64_min - steps) {
-        new_value = std::numeric_limits<qint64>::max();
+        new_value = qint64_min;
+    } else if (steps > 0 && new_value > qint64_max - steps) {
+        new_value = qint64_max;
     } else {
         new_value += steps;
     }

src/core/hle/service/soc_u.cpp

@@ -1054,6 +1054,7 @@ void SOC_U::GetAddrInfoImpl(Kernel::HLERequestContext& ctx) {
                 // if the buffer is not big enough. However the count returned is always correct.
                 CTRAddrInfo ctr_addr = CTRAddrInfo::FromPlatform(*cur);
                 std::memcpy(out_buff.data() + pos, &ctr_addr, sizeof(ctr_addr));
+                pos += sizeof(ctr_addr);
             }
             cur = cur->ai_next;
             count++;

src/input_common/udp/client.cpp

@@ -233,7 +233,7 @@ CalibrationConfigurationJob::CalibrationConfigurationJob(
     std::function<void(Status)> status_callback,
     std::function<void(u16, u16, u16, u16)> data_callback) {
 
-    std::thread([=] {
+    std::thread([=, this] {
         constexpr u16 CALIBRATION_THRESHOLD = 100;
 
         u16 min_x{UINT16_MAX};