QBitArray - find first/last set or clean bit

How to change empty editor color?

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QBitArray - find first/last set or clean bit

How fast do it?
I must iterate over all bits?
It will be faster if will possible bits treat at 32 or even 64 bit chunks.

How to change empty editor color?

MainWindow::MainWindow() {
createMenus();
tabWidget = new QTabWidget;
edit = new CodeEditor();
//tabWidget->addTab(edit, "1");
setCentralWidget(tabWidget);
}

If I write...

Re: Promote Button does not appear in "Promoted Widgets" Dialog

Open the XML .ui file in a text editor and look at how the custom widget insertion is implemented. There will be a section in the place where the widget appears in the UI hierarchy of layouts, and...