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  1. Qt
  2. QTBUG-31375

QString::number causes severe memory leaks.

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: P1: Critical P1: Critical
    • None
    • 5.1.0 Beta 1
    • Core: QString and Unicode
    • None
    • Windows 8 x64, Qt 5.1.0 beta 1 statically compiled with MSVC2012 x64

      Using QString::number causes memory leaks. Follows a piece of code that causes the problem.

      void memory_leak_function()
      {
      QString test_string;
      for(quint32 k=0; k<5000000; k++)

      { test_string=QString::number(0xA7, 16); }

      }

      Qt 5.1.0 beta 1 static compile MSVC2012 x64 on Windows 8 x64:
      Used memory before calling memory_leak_function: 25 MB.
      Used memory after calling memory_leak_function: 180 MB.

      Qt 5.0.2 static compile MSVC2012 x64 on Windows 8 x64:
      Used memory before calling memory_leak_function: 25 MB.
      Used memory after calling memory_leak_function: 25 MB.

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            smd Jan Arve
            jubba Claudio Barutta
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              Created:
              Updated:
              Resolved:

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