PetscPolymorphicScalar

allows defining a C++ polymorphic version of a PETSc function that replaces a PetscScalar * argument with a PetscScalar argument Not collective

PetscPolymorphicScalar(Functionname,(arguments of C++ function),(arguments of C function))

PetscPolymorphicScalar(VecAXPY,(PetscScalar _val,Vec x,Vec y),(&_Val,x,y)) generates the new routine PetscErrorCode VecAXPY(PetscScalar _val,Vec x,Vec y) = {PetscScalar _Val = _val; return VecAXPY(&_Val,x,y);}