Reset an Array[] in one line, possible?

2025-04-03T16:55:10.159000Z

Bonjour,
La librairy est SYSMEM en Codesys v3.5.
Pour accéder à la fonction : SysMem.SysMemSet.
Il y a plein d'autres fonctions intéressantes : SysMemSwap, SysMemMove, SysmemCpy, ...
Cela évite de créer des Boucles et permet de bien utiliser ADR() et SIZEOF()

Il existe aussi une librairie CAA Memory qui mérite intérêt;
Par exemple MEM.MemFill pour remplir un tableau d'octets.
Bons développments!

Il suffit d'ajouter ces bibliothèques dans le gestionnaire de bibliothèque pour les utiliser.
JM

Reset an Array[] in one line, possible?

2020-02-27T20:59:33.228000Z

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

Reset an Array[] in one line, possible?

2020-02-27T20:59:31.810000Z

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...

Reset an Array[] in one line, possible?

2020-02-27T20:59:27.753000Z

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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