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-   -   faceI was not declared in this scope (https://www.cfd-online.com/Forums/openfoam-programming-development/88962-facei-not-declared-scope.html)

lindstroem May 31, 2011 08:42
faceI was not declared in this scope
 
Hi everyone,

I am working on the dynamicAlphaContactAngle implementation. I got a modified version by a colleague which i tried to compile. I get the error: ‘faceI’ was not declared in this scope. He works in OF 1.7.1 and I tried to compile it in both, OF 1.6-ext and OF 1.7.1 - both did not work and stopped with the same error.

I also checked the header-files he includes, but there is no difference.. I also tried to include the faceI.H but then I get errors because of multiple defintions for some variables.

Is there anyone who might has an idea? Are there any information missing?

Greetings

marupio May 31, 2011 09:11
Contact your colleague: the code is incomplete. faceI is not a class, but it is typically used as a label variable when cycling through all the faces in the mesh. e.g.:

Code:
forAll(mesh.faces(), faceI)
{
    // Do something
}

lindstroem May 31, 2011 09:35
Hi David,

thanks for your answer. The variable is used for a loop in a similar way as you wrote, thats correct. But what he send me is exactly what he implemented.
How would you get access to this variable if you would set up a "new" modification. To be more concrete: I am using the interFoam solver and the dynamicAlphaContactAngle BC. In the dynAlpCA implementation after the calculation of uwall I want to get the velocity gradient normal to the wall of the first cell. Therefore my colleague implemented a fct which he uses in a loop
Code:
forAll(gradUP, faceI) {etc}
where gradUP is
Code:
tensorField gradUP(size(), tensor::zero)
maybe this helps? Thank you very much in advance!

marupio May 31, 2011 09:50
Hmmm... that's strange. The forAll() command is actually a macro, which does this:
Code:
forAll(objectName, indexName)
// is short for:
for (label indexName(0); indexName < objectName.size(); indexName++)
... so you see, the definition of faceI is inherent in the macro. I suspect you are not loading the header that contains the macro (UList.H, I think), or you have circular dependency in your include files.

lindstroem May 31, 2011 10:09
Hi David,

thanks again for the quick answer! I'll try to find the mistake but you already helped me a lot! Maybe I'll come back with new questions :)

happy foaming!


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