Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-31375

QString::number causes severe memory leaks.

    XMLWordPrintable

Details

    • Bug
    • Resolution: Duplicate
    • 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

    Description

      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.

      Attachments

        Issue Links

          is required for

          Task - A task that needs to be done. QTBUG-31105 Qt 5.1 RC1 release tasks

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

              smd Jan Arve
              jubba Claudio Barutta
              Votes:
              1 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

                Gerrit Reviews

                  There are no open Gerrit changes