// SPDX-License-Identifier: Apache-2.0
//
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
// Copyright 2008-2016 National ICT Australia (NICTA)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------

//! \addtogroup op_find
//! @{

class op_find : public traits_op_col {
 public:
  template <typename T1>
  inline static uword helper(Mat<uword>& indices,
                             const Base<typename T1::elem_type, T1>& X);

  template <typename T1, typename op_type>
  inline static uword helper(
      Mat<uword>& indices, const mtOp<uword, T1, op_type>& X,
      const typename arma_op_rel_only<op_type>::result* junk1 = nullptr,
      const typename arma_not_cx<typename T1::elem_type>::result* junk2 = nullptr);

  template <typename T1, typename op_type>
  inline static uword helper(
      Mat<uword>& indices, const mtOp<uword, T1, op_type>& X,
      const typename arma_op_rel_only<op_type>::result* junk1 = nullptr,
      const typename arma_cx_only<typename T1::elem_type>::result* junk2 = nullptr);

  template <typename T1, typename T2, typename glue_type>
  inline static uword helper(
      Mat<uword>& indices, const mtGlue<uword, T1, T2, glue_type>& X,
      const typename arma_glue_rel_only<glue_type>::result* junk1 = nullptr,
      const typename arma_not_cx<typename T1::elem_type>::result* junk2 = nullptr,
      const typename arma_not_cx<typename T2::elem_type>::result* junk3 = nullptr);

  template <typename T1, typename T2, typename glue_type>
  inline static uword helper(
      Mat<uword>& indices, const mtGlue<uword, T1, T2, glue_type>& X,
      const typename arma_glue_rel_only<glue_type>::result* junk1 = nullptr,
      const typename arma_cx_only<typename T1::elem_type>::result* junk2 = nullptr,
      const typename arma_cx_only<typename T2::elem_type>::result* junk3 = nullptr);

  template <typename T1>
  inline static void apply(Mat<uword>& out, const mtOp<uword, T1, op_find>& X);
};

class op_find_simple : public traits_op_col {
 public:
  template <typename T1>
  inline static void apply(Mat<uword>& out, const mtOp<uword, T1, op_find_simple>& X);
};

class op_find_finite : public traits_op_col {
 public:
  template <typename T1>
  inline static void apply(Mat<uword>& out, const mtOp<uword, T1, op_find_finite>& X);
};

class op_find_nonfinite : public traits_op_col {
 public:
  template <typename T1>
  inline static void apply(Mat<uword>& out, const mtOp<uword, T1, op_find_nonfinite>& X);
};

class op_find_nan : public traits_op_col {
 public:
  template <typename T1>
  inline static void apply(Mat<uword>& out, const mtOp<uword, T1, op_find_nan>& X);
};

//! @}
