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| author | Sérgio Martins <sergio.martins@kdab.com> | 2016-01-16 00:24:54 +0000 |
|---|---|---|
| committer | Sérgio Martins <iamsergio@gmail.com> | 2016-02-07 16:50:26 +0000 |
| commit | 01859cc12126b7205f5b54d383a9aa88db756f21 (patch) | |
| tree | 89ea0594e2d6e86bc1e0e271d9bf4215a387b28e /src/plugins/platforms | |
| parent | af499fd7eb4026088ea1ed83a976866ab930dd79 (diff) | |
Reduce allocations by using reserve()
Change-Id: If34fa53402985f6b3c5e7217bce4a1177af835b6
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Diffstat (limited to 'src/plugins/platforms')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbintegration.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/plugins/platforms/xcb/qxcbintegration.cpp b/src/plugins/platforms/xcb/qxcbintegration.cpp index 19e8b1de7d..94e17a2983 100644 --- a/src/plugins/platforms/xcb/qxcbintegration.cpp +++ b/src/plugins/platforms/xcb/qxcbintegration.cpp @@ -174,9 +174,11 @@ QXcbIntegration::QXcbIntegration(const QStringList ¶meters, int &argc, char if (canNotGrabEnv) m_canGrab = false; + const int numParameters = parameters.size(); + m_connections.reserve(1 + numParameters / 2); m_connections << new QXcbConnection(m_nativeInterface.data(), m_canGrab, m_defaultVisualId, displayName); - for (int i = 0; i < parameters.size() - 1; i += 2) { + for (int i = 0; i < numParameters - 1; i += 2) { qCDebug(lcQpaScreen) << "connecting to additional display: " << parameters.at(i) << parameters.at(i+1); QString display = parameters.at(i) + QLatin1Char(':') + parameters.at(i+1); m_connections << new QXcbConnection(m_nativeInterface.data(), m_canGrab, m_defaultVisualId, display.toLatin1().constData()); |