Hello Erik,

there is not quite enough information provided in the code fragment you are providing to tell for sure what is going on.

Would you be able to create a dummy thorn that shows the issue, then include a tar file of the whole thorn (including source, header, ccl files) as an attachment to the email?

A blind guess though: I have seem strange syntax errors being caused by missing semicolons in header files so I would double check those. You also do not really need to (nor should you to tell the truth) declare "void Initial_Setup(CCTK_ARGUMENTS);" in ID.h since the Cactus flesh will automatically include prototypes like that for all scheduled functions in the cctk_Arguments.h file it creates for your thorn.

Yours, Roland

Hello everybody,

I'm writing a function to set initial conditions, but I need to use an interative method and I need to operate over some arrays (grid functions) that I previously declared in the interface.ccl file.

This is an example of one of the functions that I'm currently writing.

#include "cctk.h" #include "cctk_Arguments.h" #include "cctk_Parameters.h" #include "ID.h"

void Initial_Setup(CCTK_ARGUMENTS) {

DECLARE_CCTK_ARGUMENTS; DECLARE_CCTK_PARAMETERS;

int index;

int i,j,k; int ierr;

for (k=0; k<cctk_lsh[2]; k++) { for (j=0; j<cctk_lsh[1]; j++) { for (i=0; i<cctk_lsh[0]; i++) { index = CCTK_GFINDEX3D(cctkGH,i,j,k);

          phi[index] = 1.0;
          pi [index] = 0.0;
        }
    }
}

}

where pi and phi are the grid functions previously defined in the interface.ccl and the header "ID.h" is where I defined the function Initial_Setup

When I call the function in the main function and compile it I get

error: type name is not allowed Initial_Setup(CCTK_ARGUMENTS); error: expression must have arithmetic type Initial_Setup(CCTK_ARGUMENTS);

these errors are the same for the other functions. All these functions are not scheduled but the main function is. What is the problem?

Any help will be apreciated.

Erik