[MaL] LinAlg; Remove default impl of finalizeAsm.

The default impl., which is not doing anything, is error prone,
because passing an object of not matrix type, e.g. std::unique_ptr<PETScVector>,
the default impl. will be taken.

MathLib/LinAlg/LinAlg.cpp

@@ -308,6 +308,8 @@ void finalizeAssembly(EigenMatrix& x)
     x.getRawMatrix().makeCompressed();
 }
 
+void finalizeAssembly(EigenVector& x) {}
+
 } // namespace LinAlg
 
 } // namespace MathLib

MathLib/LinAlg/LinAlg.h

@@ -98,11 +98,8 @@ double norm(MatrixOrVector const& x, MathLib::VecNormType type)
     }
 }
 
-template<typename Matrix>
-void finalizeAssembly(Matrix& /*A*/)
-{
-    // By default do nothing.
-}
+template <typename Matrix>
+void finalizeAssembly(Matrix& /*A*/);
 
 // Matrix and Vector
 
@@ -260,6 +257,7 @@ void matMultAdd(EigenMatrix const& A, EigenVector const& v1,
                 EigenVector const& v2, EigenVector& v3);
 
 void finalizeAssembly(EigenMatrix& A);
+void finalizeAssembly(EigenVector& A);
 
 } // namespace LinAlg