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  1. Qt
  2. QTBUG-45190

Add QTextStream::read|readAll|readLine(QString *) overloads to reuse QString's capacity

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Details

    • Suggestion
    • Resolution: Unresolved
    • P3: Somewhat important
    • None
    • None
    • Core: I/O, Core: QString and Unicode
    • None
    • 4
    • Foundation Sprint 120, Foundation Sprint 121

    Description

      This is a corollary report to QTBUG-45166. QTextStream would be safer (compared to overloads with char* as output parameter) and faster (compared to overloads returning QString) if the following overloads were present to reuse QString's capacity:

      bool QTextStream::readInto(QString *s, qint64 maxLen);
bool QTextStream::readAllInto(QString *s);

      The above overload signatures model along the already existing

      bool QTextStream::readLineInto(QString *s, qint64 maxLen); // already exists

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-57345 Reading a line over 128mb with QTextReader from a file crashes with bad alloc with 32bit application

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Reported

          Suggestion - Public suggestions QTBUG-70484 QIODevice read, readLine, readAll could report errors through optional bool* or lambda

          • P5: Not important - Not relevant and not urgent.
          • Open

          Suggestion - Public suggestions QTBUG-103108 QIODevice is missing QTextStream-line readLineInto()

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Suggestion - Public suggestions QTBUG-113547 [spike] Find out whether QIODevice::readLineInto() is possible to implement without (public) virtual methods

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Suggestion - Public suggestions QTBUG-106198 QString: add missing STL-style assign()

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed

          Suggestion - Public suggestions QTBUG-126574 QIODevice::readLineInto() should have a QSpan overload

          • P2: Important - Urgent, should be fixed, but will not stop the release.
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              tatiana.borisova Tatiana Borisova
              ckakman Kayra Akman
              Vladimir Minenko Vladimir Minenko
              Alex Blasche Alex Blasche
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              Dates

                Created:
                Updated:

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