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[SOLVED] Creating an array and giving it as FB output [message #1791272]

Wed, 27 June 2018 12:23

Agostino Mascitti

Messages: 15
Registered: May 2018

Junior Member

Hello,

I am trying to create an array and give it as FB output. For example, the FB has an output field COUNTER of type ARRAY[3]. You want to assign it the array {1,0,1}.

I have seen in FORTE_SET_AT_INDEX::executeEvent() that you can do:

CIEC_ARRAY &rOutArray = static_cast<CIEC_ARRAY&>(OUT_ARRAY());
rOutArray[INDEX()]->saveAssign(VALUE());

Thus, I have tried something:

int counters[3] = {566,0,1011};

CIEC_ANY *c = 0;
        char temp[12] = "";
        sprintf(temp, "INT#%d", counters[i]);
        printf("%s\n", temp);
        c->fromString(temp);
        printf("c=%d\n", c);
        COUNTER_Array()[static_cast<TForteUInt16>(i)]->saveAssign(*c);

COUNTER_Array().fromString("[556,0,1011]");

but the code CIEC_ARRAY::fromString() has the comment "//TODO: for full compliance support of multiple element-statements must be implemented".

[Updated on: Thu, 28 June 2018 14:10]

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Re: Creating an array and giving it as FB output [message #1791273 is a reply to message #1791272]

Wed, 27 June 2018 12:26

Agostino Mascitti

Messages: 15
Registered: May 2018

Junior Member

No Message Body

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Re: Creating an array and giving it as FB output [message #1791275 is a reply to message #1791273]

Wed, 27 June 2018 12:33

Alois Zoitl

Messages: 1581
Registered: January 2014

Senior Member

Hi,

I'm not sure if I understand the problem. fromString for single arrays definitly works. We have unit tests for that. The comment is that we currently are not supporting arrays of arrays. In ST you can also access in standard ST syntax each array element with the bracket operator (i.e., []).

Alois

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Re: Creating an array and giving it as FB output [message #1791279 is a reply to message #1791275]

Wed, 27 June 2018 13:38

Agostino Mascitti

Messages: 15
Registered: May 2018

Junior Member

Hi, thank you for your reply!

To me the last instruction in the following snippet doesn't work. It should assign the array to the OUTPUT, a field in the bottom-right margin on the FB.

CIEC_ARRAY nTest(3, g_nStringIdINT);
      nTest.fromString("[1,2,3]");
      OUTPUT_Array().setValue(nTest);

Agostino

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Re: Creating an array and giving it as FB output [message #1791280 is a reply to message #1791279]

Wed, 27 June 2018 14:03

Alois Zoitl

Messages: 1581
Registered: January 2014

Senior Member

We have a test for that as well. Just to be clear how did you define your output data type. did you use ARRAY or did you use INT and specifiy the array size of 3 in the interface editor. You have to do the latter.

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Re: Creating an array and giving it as FB output [message #1791282 is a reply to message #1791280]

Wed, 27 June 2018 14:41

Agostino Mascitti

Messages: 15
Registered: May 2018

Junior Member

It seems that this way it works. Thank you!

index.php/fa/33241/0/

#include <stdio.h>
void FORTE_prova::executeEvent(int pa_nEIID){
  DEVLOG_DEBUG("prova.exeEvent()\n");
  switch(pa_nEIID){
    case scm_nEventREQID:
      CIEC_ARRAY nTest(3, g_nStringIdINT);
      nTest.fromString("[1,2,3]");
      OUTPUT_Array().setValue(nTest);

      char val[10] = "";
      OUTPUT()->toString(val, sizeof(val));
      DEVLOG_DEBUG("OUTPUT is %s\n", val);
      break;
  }
}