add kokkos stand-in for add_to_diagonal

include/pressio/ops.hpp

@@ -102,6 +102,7 @@ template<class ...> struct matching_extents;
 #include "ops/kokkos/ops_scale.hpp"
 #include "ops/kokkos/ops_fill.hpp"
 #include "ops/kokkos/ops_resize.hpp"
+#include "ops/kokkos/ops_add_to_diagonal.hpp"
 #include "ops/kokkos/ops_abs.hpp"
 #include "ops/kokkos/ops_min_max.hpp"
 #include "ops/kokkos/ops_norms_vector.hpp"

include/pressio/ops/kokkos/ops_add_to_diagonal.hpp

@@ -0,0 +1,69 @@
+/*
+//@HEADER
+// ************************************************************************
+//
+// ops_add_to_diagonal.hpp
+//                     		  Pressio
+//                             Copyright 2019
+//    National Technology & Engineering Solutions of Sandia, LLC (NTESS)
+//
+// Under the terms of Contract DE-NA0003525 with NTESS, the
+// U.S. Government retains certain rights in this software.
+//
+// Pressio is licensed under BSD-3-Clause terms of use:
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+// IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// Questions? Contact Francesco Rizzi (fnrizzi@sandia.gov)
+//
+// ************************************************************************
+//@HEADER
+*/
+
+#ifndef PRESSIOOPS_OPS_KOKKOS_OPS_ADD_TO_DIAGONAL_HPP_
+#define PRESSIOOPS_OPS_KOKKOS_OPS_ADD_TO_DIAGONAL_HPP_
+
+namespace pressio{ namespace ops{
+
+/*
+  stand-in function to prevent build errors
+  when Eigen is disabled
+*/
+template <typename T, class ScalarType>
+std::enable_if_t<
+  ::pressio::is_native_container_kokkos<T>::value
+  && std::is_convertible<ScalarType, typename ::pressio::Traits<T>::scalar_type>::value
+  >
+add_to_diagonal(T & o, const ScalarType & value)
+{
+  throw std::runtime_error("missing implementation");
+}
+
+}} //end namespace pressio::ops
+#endif  // PRESSIOOPS_OPS_KOKKOS_OPS_ADD_TO_DIAGONAL_HPP_