const qualifier problems
 

Hi my createField.H has defination of T as

const volScalarField& T = thermo.T();
I want to impliment my code on boundaryCondition correction as

forAll(T.boundaryField()[patchID],i)
{

T.boundaryField)([patchID][i] = T.boundaryField()[patchID][i]-DT;
------------
-------------------------- (some code for spoces) ........
T.write();

}

I am getting following error

error: assignment of read-only location ‘(&(&(& T)->Foam::GeometricField<Type, PatchField, GeoMesh>::boundaryField<double,.....

How to resolve this condition I want to correct the temperature T with some differet function based on spices flux. please help