[Pascal_doran]

Hi all,

I've created an utility (vit_cond_init_2t_test) and every thing goes right. But now I would like to be able to give parameters (entries) to my utility to customize it like that:

vit_cond_init_2t_test a b c d

where a, b, c and d are input parameters

I would like to modify my utility to do so. Here's what I've tried :

int main(int argc, char *argv[])  
{  
 
# include "setRootCase.H"  
# include "createTime.H"  
# include "createMesh.H"  
# include "createFields.H" 

  argList::validArgs.append("value");
  argList::validArgs.append("value");
  argList::validArgs.append("value");
  argList::validArgs.append("value");

  scalar a(readScalar(IStringStream(args.args()[1])()));
  scalar b(readScalar(IStringStream(args.args()[2])()));
  scalar c(readScalar(IStringStream(args.args()[3])()));
  scalar d(readScalar(IStringStream(args.args()[4])()));

...

return(0);  
}

I have the following error message when I run the code :

Wrong number of arguments, expected 0 found 4

FOAM exiting

Thank you,

Pascal

[olesen]

Originally Posted by Pascal_doran

I would like to modify my utility to do so. Here's what I've tried :

int main(int argc, char *argv[])  
{  
 
# include "setRootCase.H"  
# include "createTime.H"  
# include "createMesh.H"  
# include "createFields.H" 

  argList::validArgs.append("value");
  argList::validArgs.append("value");
  argList::validArgs.append("value");
  argList::validArgs.append("value");

  scalar a(readScalar(IStringStream(args.args()[1])()));
  scalar b(readScalar(IStringStream(args.args()[2])()));
  scalar c(readScalar(IStringStream(args.args()[3])()));
  scalar d(readScalar(IStringStream(args.args()[4])()));

...

return(0);  
}

I have the following error message when I run the code :

Wrong number of arguments, expected 0 found 4

FOAM exiting

Simple to solve. If you see what the #include "setRootCase.H" actually does, you'll see that you've tried to parse the command-line before actually defining which options and arguments it can handle.

You want something like this:

int main(int argc, char *argv[])  
{  
  // does it work correctly in parallel? If not you need this:
  // argList::noParallel(); 

// define allowable options and arguments
  argList::validArgs.append("valueA");
   argList::validArgs.append("valueB");
   argList::validArgs.append("valueC");
   argList::validArgs.append("valueD");
 
// construct 'args' from command-line, parsing options/arguments:
# include "setRootCase.H"  

# include "createTime.H"  
# include "createMesh.H"  
# include "createFields.H" 

  const scalar a(readScalar(IStringStream(args.args()[1])()));
  const scalar b(readScalar(IStringStream(args.args()[2])()));
  const scalar c(readScalar(IStringStream(args.args()[3])()));
  const  scalar d(readScalar(IStringStream(args.args()[4])()));

...

return 0;  
}

To be especially pedantic, I've added a 'const' in front of the scalars, since they are probably invariant.

This hopefully gets you going.

[Pascal_doran]

Thanks a lot M. Olesen, everything works perfectly!

Pascal