Troubles when create a new volScalarField in my own library
 

Dear all,

I'm struggling to create a new volScalarField variable in my own function before compiling my own source code, the exactly same thing like pressure, density, viscosity, etc.
But failed again and again, any suggestion please?:confused:

fail? your question is too vague, atleast post your error line

error: no matching function for call to ‘Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::GeometricField()’

would you mind!, add your pieces of code here too ;)

Suggestion: copy existing code from a solver and rename the variables.

A very simple test, the header file (XXX.H) is:

#include "fvCFD.H"
#include "IOstream.H"
#include "messageStream.H"

namespace Foam
{
namespace Test
{
class Try
{
public:
volScalarField value1,value2;
static volScalarField newField( );
};
}
}

The implement file (XXX.C) is:

#include "XXX.H"

namespace Foam
{
namespace Test
{
volScalarField value1;
volScalarField Try::newField( );
volScalarField value2;
value2=value1;
return (value2);
}
}


To generate a new library, I have tried with some 'int' type functions and variables in this way, they can be compiled and work well to be called in a main program.
But when the variable type is 'volScalarField', did I miss something? Like other header files to include?

As far as I can see, you are trying to call a volScalarField constructor without any arguments. There is no such constructor, see: http://foam.sourceforge.net/docs/cpp/a00776.html , to construct a volScalarField, you need at least a mesh somewhere.