// SPDX-License-Identifier: Apache-2.0
// 
// Copyright 2008-2016 Conrad Sanderson (https://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
// https://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 fn_sort
//! @{



template<typename T1>
arma_warn_unused
arma_inline
typename
enable_if2
  <
  is_arma_type<T1>::value && resolves_to_vector<T1>::yes,
  const Op<T1, op_sort_vec>
  >::result
sort
  (
  const T1& X
  )
  {
  arma_debug_sigprint();
  
  return Op<T1, op_sort_vec>(X, 0, 0);
  }



template<typename T1>
arma_warn_unused
arma_inline
typename
enable_if2
  <
  is_arma_type<T1>::value && resolves_to_vector<T1>::no,
  const Op<T1, op_sort>
  >::result
sort
  (
  const T1& X
  )
  {
  arma_debug_sigprint();
  
  return Op<T1, op_sort>(X, 0, 0);
  }



template<typename T1, typename T2>
arma_warn_unused
inline
typename
enable_if2
  <
  is_arma_type<T1>::value && resolves_to_vector<T1>::yes && is_same_type<T2, char>::value,
  const Op<T1, op_sort_vec>
  >::result
sort
  (
  const T1&   X,
  const T2*   sort_direction
  )
  {
  arma_debug_sigprint();
  
  const char sig = (sort_direction != nullptr) ? sort_direction[0] : char(0);
  
  arma_conform_check( (sig != 'a') && (sig != 'd'), "sort(): unknown sort direction" );
  
  const uword sort_type = (sig == 'a') ? 0 : 1;
  
  return Op<T1, op_sort_vec>(X, sort_type, 0);
  }



template<typename T1, typename T2>
arma_warn_unused
inline
typename
enable_if2
  <
  is_arma_type<T1>::value && resolves_to_vector<T1>::no && is_same_type<T2, char>::value,
  const Op<T1, op_sort>
  >::result
sort
  (
  const T1&   X,
  const T2*   sort_direction
  )
  {
  arma_debug_sigprint();
  
  const char sig = (sort_direction != nullptr) ? sort_direction[0] : char(0);
  
  arma_conform_check( (sig != 'a') && (sig != 'd'), "sort(): unknown sort direction" );
  
  const uword sort_type = (sig == 'a') ? 0 : 1;
  
  return Op<T1, op_sort>(X, sort_type, 0);
  }



template<typename T1, typename T2>
arma_warn_unused
inline
typename
enable_if2
  <
  ( (is_arma_type<T1>::value) && (is_same_type<T2, char>::value) ),
  const Op<T1, op_sort>
  >::result
sort
  (
  const T1&   X,
  const T2*   sort_direction,
  const uword dim
  )
  {
  arma_debug_sigprint();
  
  const char sig = (sort_direction != nullptr) ? sort_direction[0] : char(0);
  
  arma_conform_check( (sig != 'a') && (sig != 'd'), "sort(): unknown sort direction" );
  
  const uword sort_type = (sig == 'a') ? 0 : 1;
  
  return Op<T1, op_sort>(X, sort_type, dim);
  }



//! @}
