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Memory Leak in Qt 4.10.0

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  • N ndiwan

    b19325b7-e01a-4bcb-b0c0-4aeeefc8247a-image.png

    In the above screenshot Kit combo dropdown is disable. If I click manage , I can see this:

    10ef1a27-cc0e-4834-8a40-c26bb764504e-image.png

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #19

    @ndiwan Do you have Valgrind? Check in Analyzer/Valgrind. You need to set the path to Valgrind executable.

    https://forum.qt.io/topic/113070/qt-code-of-conduct

    Christian EhrlicherC 1 Reply Last reply
    0
    • jsulmJ jsulm

      @ndiwan Do you have Valgrind? Check in Analyzer/Valgrind. You need to set the path to Valgrind executable.

      Christian EhrlicherC Offline
      Christian EhrlicherC Offline
      Christian Ehrlicher
      Lifetime Qt Champion
      wrote on last edited by
      #20

      @jsulm Since when does valgrind run on windows?

      Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
      Visit the Qt Academy at https://academy.qt.io/catalog

      jsulmJ JonBJ 2 Replies Last reply
      2
      • Christian EhrlicherC Christian Ehrlicher

        @jsulm Since when does valgrind run on windows?

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #21

        @Christian-Ehrlicher Ah, Windows. Well, since never :-)

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        1 Reply Last reply
        0
        • N Offline
          N Offline
          ndiwan
          wrote on last edited by ndiwan
          #22

          So How I can check memory leakage in Qt Creator running on Windows 10 ?

          Thanks

          JonBJ 1 Reply Last reply
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          • Christian EhrlicherC Christian Ehrlicher

            @jsulm Since when does valgrind run on windows?

            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on last edited by JonB
            #23

            @Christian-Ehrlicher said in Memory Leak in Qt 4.10.0:

            Since when does valgrind run on windows?

            I am the person who originally replied to @ndiwan 's "Could you please help me with how I can detect memory leak." with "Use valgrind to detect memory leakages."

            I read the question carefully and nowhere did it mention using Windows. One of my pet bug-bears is if questioners cannot tell you what OS they are on for a question of this kind, why should I guess they are under Windows? Other OS people tell you what they are on, why do Windows users think people ought know they are on Windows...?

            Christian EhrlicherC 1 Reply Last reply
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            • N ndiwan

              So How I can check memory leakage in Qt Creator running on Windows 10 ?

              Thanks

              JonBJ Offline
              JonBJ Offline
              JonB
              wrote on last edited by
              #24

              @ndiwan said in Memory Leak in Qt 4.10.0:

              So How I can check memory leakage in Qt Creator running on Windows 10 ?

              I would imagine it would depend on what compiler you have chosen to use, which we don't know....

              jsulmJ 1 Reply Last reply
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              • JonBJ JonB

                @ndiwan said in Memory Leak in Qt 4.10.0:

                So How I can check memory leakage in Qt Creator running on Windows 10 ?

                I would imagine it would depend on what compiler you have chosen to use, which we don't know....

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #25

                @JonB According to Kits it's MinGW

                https://forum.qt.io/topic/113070/qt-code-of-conduct

                1 Reply Last reply
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                • JonBJ JonB

                  @Christian-Ehrlicher said in Memory Leak in Qt 4.10.0:

                  Since when does valgrind run on windows?

                  I am the person who originally replied to @ndiwan 's "Could you please help me with how I can detect memory leak." with "Use valgrind to detect memory leakages."

                  I read the question carefully and nowhere did it mention using Windows. One of my pet bug-bears is if questioners cannot tell you what OS they are on for a question of this kind, why should I guess they are under Windows? Other OS people tell you what they are on, why do Windows users think people ought know they are on Windows...?

                  Christian EhrlicherC Offline
                  Christian EhrlicherC Offline
                  Christian Ehrlicher
                  Lifetime Qt Champion
                  wrote on last edited by
                  #26

                  @JonB said in Memory Leak in Qt 4.10.0:

                  why do Windows users think people ought know they are on Windows...?

                  I don't know.
                  And yes - my answer would also be - use valgrind or any other proper leak checker tool and how to you know that there is a memleak at all?

                  Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                  Visit the Qt Academy at https://academy.qt.io/catalog

                  1 Reply Last reply
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                  • JoeCFDJ Offline
                    JoeCFDJ Offline
                    JoeCFD
                    wrote on last edited by JoeCFD
                    #27

                    On Windows, it may be a good idea to use Visual Studio + Qt plugin. Visual Studio is a powerful tool and has memory check functions for C++ code.
                    https://docs.microsoft.com/en-us/visualstudio/debugger/finding-memory-leaks-using-the-crt-library?view=vs-2019

                    Christian EhrlicherC 1 Reply Last reply
                    0
                    • JoeCFDJ Offline
                      JoeCFDJ Offline
                      JoeCFD
                      wrote on last edited by JoeCFD
                      #28

                      https://www.albertgao.xyz/2016/09/28/how-to-use-valgrind-on-windows/
                      I came across this, but never tried it by myself. Strongly recommend to use VS.

                      1 Reply Last reply
                      0
                      • JoeCFDJ JoeCFD

                        On Windows, it may be a good idea to use Visual Studio + Qt plugin. Visual Studio is a powerful tool and has memory check functions for C++ code.
                        https://docs.microsoft.com/en-us/visualstudio/debugger/finding-memory-leaks-using-the-crt-library?view=vs-2019

                        Christian EhrlicherC Offline
                        Christian EhrlicherC Offline
                        Christian Ehrlicher
                        Lifetime Qt Champion
                        wrote on last edited by
                        #29

                        @JoeCFD said in Memory Leak in Qt 4.10.0:

                        Visual Studio is a powerful tool

                        powerful? Nice try...

                        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                        Visit the Qt Academy at https://academy.qt.io/catalog

                        1 Reply Last reply
                        0
                        • N Offline
                          N Offline
                          ndiwan
                          wrote on last edited by
                          #30

                          Thanks , I will try VS.

                          Thanks

                          1 Reply Last reply
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