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  1. Qt
  2. QTBUG-37155

QString::sprintf - gcc compiler warns when using QString::utf16() as argument for %ls placeholder

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Details

    • Bug
    • Resolution: Out of scope
    • P2: Important
    • None
    • 5.3.0 Alpha
    • Core: QString and Unicode
    • None

    Description

      The documentation of QString::sprintf says:

      The %ls escape sequence expects a pointer to a zero-terminated array of unicode characters of type ushort (as returned by QString::utf16()).

      However, e.g.

      QString world("World");
QString().sprintf("Hello %ls", str.utf16());

      will generate a gcc warning:

      warning: format '%ls' expects argument of type 'wchar_t*', but argument 3 has type 'const ushort* {aka const short unsigned int*}' [-Wformat=]

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            kkohne Kai Köhne
            kkohne Kai Köhne
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              Updated:
              Resolved:

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