text: // 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 fn_var
  //! @{
  
  
  
  template<typename T1>
  arma_warn_unused
  inline
  const mtOp<typename T1::pod_type, T1, op_var>
  var
    (
    const T1& X,
    const uword norm_type = 0,
    const uword dim = 0,
    const typename enable_if< is_arma_type<T1>::value       == true  >::result* junk1 = 0,
    const typename enable_if< resolves_to_vector<T1>::value == false >::result* junk2 = 0
    )
    {
    arma_extra_debug_sigprint();
    arma_ignore(junk1);
    arma_ignore(junk2);
  
    return mtOp<typename T1::pod_type, T1, op_var>(X, norm_type, dim);
    }
  
  
  
  template<typename T1>
  arma_warn_unused
  inline
  const mtOp<typename T1::pod_type, T1, op_var>
  var
    (
    const T1& X,
    const uword norm_type,
    const uword dim,
    const typename enable_if<resolves_to_vector<T1>::value == true>::result* junk = 0
    )
    {
    arma_extra_debug_sigprint();
    arma_ignore(junk);
  
    return mtOp<typename T1::pod_type, T1, op_var>(X, norm_type, dim);
    }
  
  
  
  template<typename T1>
  arma_warn_unused
  inline
  typename T1::pod_type
  var
    (
    const T1& X,
    const uword norm_type = 0,
    const arma_empty_class junk1 = arma_empty_class(),
    const typename enable_if<resolves_to_vector<T1>::value == true>::result* junk2 = 0
    )
    {
    arma_extra_debug_sigprint();
    arma_ignore(junk1);
    arma_ignore(junk2);
  
    return op_var::var_vec( X, norm_type );
    }
  
  
  
  template<typename T>
  arma_warn_unused
  arma_inline
  const typename arma_scalar_only<T>::result
  var(const T&)
    {
    return T(0);
    }
  
  
  
  template<typename T1>
  arma_warn_unused
  inline
  const mtSpOp<typename T1::pod_type, T1, spop_var>
  var
    (
    const T1& X,
    const uword norm_type = 0,
    const uword dim = 0,
    const typename enable_if< is_arma_sparse_type<T1>::value       == true  >::result* junk1 = 0,
    const typename enable_if< resolves_to_sparse_vector<T1>::value == false >::result* junk2 = 0
    )
    {
    arma_extra_debug_sigprint();
    arma_ignore(junk1);
    arma_ignore(junk2);
  
    return mtSpOp<typename T1::pod_type, T1, spop_var>(X, norm_type, dim);
    }
  
  
  
  template<typename T1>
  arma_warn_unused
  inline
  const mtSpOp<typename T1::pod_type, T1, spop_var>
  var
    (
    const T1& X,
    const uword norm_type,
    const uword dim = 0,
    const typename enable_if<resolves_to_sparse_vector<T1>::value == true>::result* junk1 = 0
    )
    {
    arma_extra_debug_sigprint();
    arma_ignore(junk1);
  
    return mtSpOp<typename T1::pod_type, T1, spop_var>(X, norm_type, dim);
    }
  
  
  
  template<typename T1>
  arma_warn_unused
  inline
  typename T1::pod_type
  var
    (
    const T1& X,
    const uword norm_type = 0,
    const arma_empty_class junk1 = arma_empty_class(),
    const typename enable_if<resolves_to_sparse_vector<T1>::value == true>::result* junk2 = 0
    )
    {
    arma_extra_debug_sigprint();
    arma_ignore(junk1);
    arma_ignore(junk2);
  
    return spop_var::var_vec(X, norm_type);
    }
  
  
  
  //! @}
  