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Reset an Array[] in one line, possible?

Codesys V2.3 🇬🇧
fredleemans
2013-03-22
2013-03-22

  • fredleemans - 2013-03-22

    Hello,

    I would like to know if it's possible to "Reset" all the index of an array to a value, with one line?

    For example:

    I have a array of 5 real. array[1]= 1.12, array[2]= 2.23, array[3]= 3.45, array[4]= 4.56, etc...

    In a phase of my sequence, I need to "Reset" completely my array[] to a specific value, for example 0.

    Is there any commands that allow that or should I use a Loop to "Reset" each index one by one...?

    eg: array[1..5] := 0; or something like that?

    Thank you for your help,

    Regards,

    Fred

     

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  • Strucc - 2013-03-22

    There is no standard way to do this.

    However, if you don't aim platform independence, and your target platform support SysLibMem library, you might want to try:

    SysMemSet(ADR(MyArray),0,SIZEOF(MyArray));

    However, this only works, if you'd like to reset everything to 0, or it's an array of bytes.

    I'm not sure about the performance difference between this solution and a standard ST for loop...

     

  • fredleemans - 2013-03-22

    Hello,

    Ok, I'm gonna to see if I have SysLibMem library.

    I want reset all to '0', so it would be perfect.

    Anyway, I can measure the time for performing the 2 methods and compare it... Finally a "For" Loop is not so big to write.

    Thank you for your idea,

    Regards,

    Fred

     

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