avoid warning about unused variable

According to the documentation of ArpackSolver::solve the first parameter is
unused. Do not give it a name in the definition to avoid unused variable
warnings.

diff --git a/include/deal.II/lac/arpack_solver.h b/include/deal.II/lac/arpack_solver.h
index 5417d7d2d7adde8c054ee04d1010571c110d58df..63751a8250365eede877d1120cded9427d9e57ee 100644 (file)
--- a/include/deal.II/lac/arpack_solver.h
+++ b/include/deal.II/lac/arpack_solver.h
@@ -260,7 +260,7 @@ ArpackSolver::ArpackSolver (SolverControl &control,
 template <typename VectorType, typename MatrixType1,
           typename MatrixType2, typename INVERSE>
 inline
-void ArpackSolver::solve (const MatrixType1                  &system_matrix,
+void ArpackSolver::solve (const MatrixType1                  &/*system_matrix*/,
                           const MatrixType2                  &mass_matrix,
                           const INVERSE                      &inverse,
                           std::vector<std::complex<double> > &eigenvalues,