107 lines
2.2 KiB
C++
107 lines
2.2 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup fn_eps
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//! @{
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template<typename T1>
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arma_warn_unused
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inline
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const eOp<T1, eop_eps>
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eps(const Base<typename T1::elem_type, T1>& X, const typename arma_not_cx<typename T1::elem_type>::result* junk = nullptr)
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{
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arma_debug_sigprint();
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arma_ignore(junk);
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return eOp<T1, eop_eps>(X.get_ref());
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}
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template<typename T1>
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arma_warn_unused
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inline
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Mat< typename T1::pod_type >
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eps(const Base< std::complex<typename T1::pod_type>, T1>& X, const typename arma_cx_only<typename T1::elem_type>::result* junk = nullptr)
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{
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arma_debug_sigprint();
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arma_ignore(junk);
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typedef typename T1::pod_type T;
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typedef typename T1::elem_type eT;
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const unwrap<T1> tmp(X.get_ref());
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const Mat<eT>& A = tmp.M;
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Mat<T> out(A.n_rows, A.n_cols, arma_nozeros_indicator());
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T* out_mem = out.memptr();
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const eT* A_mem = A.memptr();
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const uword n_elem = A.n_elem;
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for(uword i=0; i<n_elem; ++i)
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{
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out_mem[i] = eop_aux::direct_eps( A_mem[i] );
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}
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return out;
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}
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template<typename eT>
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arma_warn_unused
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arma_inline
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typename arma_integral_only<eT>::result
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eps(const eT& x)
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{
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arma_ignore(x);
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return eT(0);
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}
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template<typename eT>
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arma_warn_unused
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arma_inline
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typename arma_real_only<eT>::result
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eps(const eT& x)
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{
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return eop_aux::direct_eps(x);
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}
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template<typename T>
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arma_warn_unused
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arma_inline
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typename arma_real_only<T>::result
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eps(const std::complex<T>& x)
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{
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return eop_aux::direct_eps(x);
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}
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//! @}
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