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Invalid parameter passed to C runtime function

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qtcreatorqstringlistruntime error
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  • L Lasith

    @mrjj Thanx how can I check the current memory usage? Using the task manager?

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #10

    @Lasith
    Yes it can give a good hint. Start app and see how much it uses.

    there is also
    https://docs.microsoft.com/en-us/sysinternals/downloads/rammap

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    • mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by
      #11

      Does error comes as soon as you start the app or
      does it take some time?

      L 1 Reply Last reply
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      • mrjjM mrjj

        Does error comes as soon as you start the app or
        does it take some time?

        L Offline
        L Offline
        Lasith
        wrote on last edited by Lasith
        #12

        @mrjj The error oocurs when I click a button which feeds a set of values to a QStringList through 2 for loops!

        mrjjM JonBJ 2 Replies Last reply
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        • L Lasith

          @mrjj The error oocurs when I click a button which feeds a set of values to a QStringList through 2 for loops!

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #13

          @Lasith
          Ok, you might copy a lot around and run out of memory.
          is it 32/64 bit app?
          how much memory do you have?

          L 1 Reply Last reply
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          • mrjjM mrjj

            @Lasith
            Ok, you might copy a lot around and run out of memory.
            is it 32/64 bit app?
            how much memory do you have?

            L Offline
            L Offline
            Lasith
            wrote on last edited by
            #14

            @mrjj I can not check now :( Its in my office PC Now I am home I will notify you tomorrow! :)

            mrjjM 1 Reply Last reply
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            • L Lasith

              @mrjj I can not check now :( Its in my office PC Now I am home I will notify you tomorrow! :)

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #15

              @Lasith
              Ok, if you copy lists, it might be the reason.
              You should show the code.
              Using all mem with strings, takes a lot of strings :)

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              • L Lasith

                @mrjj The error oocurs when I click a button which feeds a set of values to a QStringList through 2 for loops!

                JonBJ Offline
                JonBJ Offline
                JonB
                wrote on last edited by
                #16

                @Lasith said in Invalid parameter passed to C runtime function:

                @mrjj The error oocurs when I click a button which feeds a set of values to a QStringList through 2 for loops!

                And you're sure those 2 loops aren't actually unlimited? ;-) Better look at how many iterations they do :) You do have to do really quite a lot of iterations to run out of memory!

                L 1 Reply Last reply
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                • JonBJ JonB

                  @Lasith said in Invalid parameter passed to C runtime function:

                  @mrjj The error oocurs when I click a button which feeds a set of values to a QStringList through 2 for loops!

                  And you're sure those 2 loops aren't actually unlimited? ;-) Better look at how many iterations they do :) You do have to do really quite a lot of iterations to run out of memory!

                  L Offline
                  L Offline
                  Lasith
                  wrote on last edited by Lasith
                  #17

                  @JNBarchan No the upper limits of the conditions is finite! Any way I will check and see! Plus if its an infinite loop the error message is different as I remember!

                  JonBJ 1 Reply Last reply
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                  • L Lasith

                    @JNBarchan No the upper limits of the conditions is finite! Any way I will check and see! Plus if its an infinite loop the error message is different as I remember!

                    JonBJ Offline
                    JonBJ Offline
                    JonB
                    wrote on last edited by JonB
                    #18

                    @Lasith said in Invalid parameter passed to C runtime function:

                    @JNBarchan No the upper limits of the conditions is finite!

                    This is good to know. But there are finite numbers and then there are other finite numbers. Numbers like, say, 0x7FFFFFFF (2 billion?) as the limit in each loop (I'm understanding they are nested?) will cause a lot of iterations... ;-)

                    L 1 Reply Last reply
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                    • JonBJ JonB

                      @Lasith said in Invalid parameter passed to C runtime function:

                      @JNBarchan No the upper limits of the conditions is finite!

                      This is good to know. But there are finite numbers and then there are other finite numbers. Numbers like, say, 0x7FFFFFFF (2 billion?) as the limit in each loop (I'm understanding they are nested?) will cause a lot of iterations... ;-)

                      L Offline
                      L Offline
                      Lasith
                      wrote on last edited by
                      #19

                      @JNBarchan yeah they are nested for loops!

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