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// 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_norm
//! @{
class op_norm
: public traits_op_default
{
public:
// norms for dense vectors and matrices
template<typename T1> arma_hot inline static typename T1::pod_type vec_norm_1(const Proxy<T1>& P, const typename arma_not_cx<typename T1::elem_type>::result* junk = nullptr);
template<typename T1> arma_hot inline static typename T1::pod_type vec_norm_1(const Proxy<T1>& P, const typename arma_cx_only<typename T1::elem_type>::result* junk = nullptr);
template<typename eT> arma_hot inline static eT vec_norm_1_direct_std(const Mat<eT>& X);
template<typename eT> arma_hot inline static eT vec_norm_1_direct_mem(const uword N, const eT* A);
template<typename T1> arma_hot inline static typename T1::pod_type vec_norm_2(const Proxy<T1>& P, const typename arma_not_cx<typename T1::elem_type>::result* junk = nullptr);
template<typename T1> arma_hot inline static typename T1::pod_type vec_norm_2(const Proxy<T1>& P, const typename arma_cx_only<typename T1::elem_type>::result* junk = nullptr);
template<typename eT> arma_hot inline static eT vec_norm_2_direct_std(const Mat<eT>& X);
template<typename eT> arma_hot inline static eT vec_norm_2_direct_mem(const uword N, const eT* A);
template<typename eT> arma_hot inline static eT vec_norm_2_direct_robust(const Mat<eT>& X);
template<typename T1> arma_hot inline static typename T1::pod_type vec_norm_k(const Proxy<T1>& P, const int k);
template<typename T1> arma_hot inline static typename T1::pod_type vec_norm_max(const Proxy<T1>& P);
template<typename T1> arma_hot inline static typename T1::pod_type vec_norm_min(const Proxy<T1>& P);
template<typename T1> inline static typename T1::pod_type mat_norm_1(const Proxy<T1>& P);
template<typename T1> inline static typename T1::pod_type mat_norm_2(const Proxy<T1>& P);
template<typename T1> inline static typename T1::pod_type mat_norm_inf(const Proxy<T1>& P);
// norms for sparse matrices
template<typename T1> inline static typename T1::pod_type mat_norm_1(const SpProxy<T1>& P);
template<typename T1> inline static typename T1::pod_type mat_norm_2(const SpProxy<T1>& P, const typename arma_real_only<typename T1::elem_type>::result* junk = nullptr);
template<typename T1> inline static typename T1::pod_type mat_norm_2(const SpProxy<T1>& P, const typename arma_cx_only<typename T1::elem_type>::result* junk = nullptr);
template<typename T1> inline static typename T1::pod_type mat_norm_inf(const SpProxy<T1>& P);
};
//! @}
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