[Development] qsizetype and classes working with QStrings or QList

Marcel Krems marcel.k.dev at gmail.com
Sun Aug 23 16:06:25 CEST 2020


since QString, QList, etc. are using qsizetype for indexing- and 
What is the plan with classes working with aforementioned container 
classes which are still using int in their interfaces?
If they keep using int there could be a lot of warnings like this one:
warning: implicit conversion loses integer precision: 'qsizetype' (aka 
'long long') to 'int' [-Wshorten-64-to-32]
Or you have to plaster your code with casts. E.g. every time you pass an 
index of your container to your model class.

Some classes which are probably affected:
* QAbstractItemModel and subclasses (using QList or std::vector as data 
* QModelIndex
* QRegularExpression (match offset)
* QStringMatcher
* QSyntaxHighlighter
* QTextBoundaryFinder
* QXmlString::size

* QTextCursor
* QTextDocument (find offset, character{At,Count})
* QTextLayout
* QValidator and subclasses (validate offset)

* QAbstractItemView and subclasses
* QLineEdit

Kind regards,

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