topic Re: Looping through GS::Array<API_Guid> in Archicad C++ API

Looping through GS::Array

dushyant — Tue, 14 Sep 2021 07:20:31 GMT

Hi

How can I loop through the items stored in a GS::Array<API_Guid> array? I want to print all the Guids stored in it, say via ACAPI_WriteReport()..
(Also, how do you normally print out data to check values while developing/debugging?)

I tried: for (int i = 0; i < sizeof(arrayName); i++) { .. } but it is giving out some strange results.

Thanks

Re: Looping through GS::Array

Viktor Kovacs — Fri, 20 Aug 2021 12:57:44 GMT

You can use it like an std::vector.

For example:


for (UIndex i = 0; i < array.GetSize (); i++) {
    const API_Guid& guid = array;
    // do something with the guid
}


for (const API_Guid& guid : array) {
    // do something with the guid
}

Re: Looping through GS::Array

Anonymous — Fri, 20 Aug 2021 12:58:05 GMT

Hi, try:


GS::Array<API_Guid> array;
    for(auto element : elemList)
    {...}


    for (GS::Array<API_Guid>::ConstIterator element = array.Enumerate(); element  != nullptr; ++element )
    {...}

Re: Looping through GS::Array

dushyant — Fri, 20 Aug 2021 13:30:57 GMT

Thanks Viktor and Konstantin.

I am trying to print the Guids using ACAPI_WriteReport() , as I don't know of any other way to print debug info in Archicad, using the "%s" format specifier, like this:

for (const API_Guid& guid : arrayOfGuids) {
      ACAPI_WriteReport("%s", false, guid);
}

It is not printing anything. How to print an API_Guid ?

Thanks

Re: Looping through GS::Array

poco2013 — Fri, 20 Aug 2021 22:18:06 GMT

This will work but is not the optimum way. Someone else may input the proper utility but this is what I use.


char hold[254] = {};
APIGuid2GSGuid(guid).ConvertToString(hold)
ACAPI_WriteReport("%s",false,hold);

Re: Looping through GS::Array

dushyant — Sat, 21 Aug 2021 09:04:44 GMT

poco2013 wrote:
This will work but is not the optimum way. Someone else may input the proper utility but this is what I use.
Code: Select all

char hold[254] = {};
APIGuid2GSGuid(guid).ConvertToString(hold)
ACAPI_WriteReport("%s",false,hold);

Thanks Gerry, that worked perfectly.

So API-Guid and GS-Guid are different?

Re: Looping through GS::Array

poco2013 — Sat, 21 Aug 2021 09:27:32 GMT

dushyant wrote:

So API-Guid and GS-Guid are different?

They are essentially the same thing except GS::Guid is packed as a Class and API_Guid is a structure.

From the API Manual:

"API_Guid is essentially a GS::Guid. It has the same size and structure, and only exists because of certain C++ language limitations: namely that a union (like API_Element) cannot contain a class which has a constructor or destructor. Since API_Elem_Head needs to contain a Guid member, and it cannot be a GS::Guid, the API_Guid structure was introduced."

Re: Looping through GS::Array

dushyant — Mon, 23 Aug 2021 06:15:50 GMT

poco2013 wrote:
They are essentially the same thing except GS::Guid is packed as a Class and API_Guid is a structure.

From the API Manual:

"API_Guid is essentially a GS::Guid. It has the same size and structure, and only exists because of certain C++ language limitations: namely that a union (like API_Element) cannot contain a class which has a constructor or destructor. Since API_Elem_Head needs to contain a Guid member, and it cannot be a GS::Guid, the API_Guid structure was introduced."

Thanks a lot Gerry!