126 lines
3.3 KiB
C++
126 lines
3.3 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_sqrtmat
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//! @{
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template<typename T1>
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arma_warn_unused
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arma_inline
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typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::no), const mtOp<std::complex<typename T1::elem_type>, T1, op_sqrtmat> >::result
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sqrtmat(const Base<typename T1::elem_type,T1>& X)
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{
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arma_extra_debug_sigprint();
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return mtOp<std::complex<typename T1::elem_type>, T1, op_sqrtmat>(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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arma_inline
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typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::yes), const Op<T1, op_sqrtmat_cx> >::result
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sqrtmat(const Base<typename T1::elem_type,T1>& X)
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{
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arma_extra_debug_sigprint();
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return Op<T1, op_sqrtmat_cx>(X.get_ref());
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}
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template<typename T1>
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inline
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typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::no), bool >::result
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sqrtmat(Mat< std::complex<typename T1::elem_type> >& Y, const Base<typename T1::elem_type,T1>& X)
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{
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arma_extra_debug_sigprint();
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const bool status = op_sqrtmat::apply_direct(Y, X.get_ref());
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if(status == false)
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{
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arma_debug_warn_level(3, "sqrtmat(): given matrix is singular; may not have a square root");
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}
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return status;
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}
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template<typename T1>
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inline
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typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::yes), bool >::result
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sqrtmat(Mat<typename T1::elem_type>& Y, const Base<typename T1::elem_type,T1>& X)
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{
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arma_extra_debug_sigprint();
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const bool status = op_sqrtmat_cx::apply_direct(Y, X.get_ref());
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if(status == false)
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{
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arma_debug_warn_level(3, "sqrtmat(): given matrix is singular; may not have a square root");
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}
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return status;
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}
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//
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template<typename T1>
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arma_warn_unused
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arma_inline
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typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Op<T1, op_sqrtmat_sympd> >::result
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sqrtmat_sympd(const Base<typename T1::elem_type,T1>& X)
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{
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arma_extra_debug_sigprint();
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return Op<T1, op_sqrtmat_sympd>(X.get_ref());
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}
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template<typename T1>
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inline
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typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
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sqrtmat_sympd(Mat<typename T1::elem_type>& Y, const Base<typename T1::elem_type,T1>& X)
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{
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arma_extra_debug_sigprint();
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const bool status = op_sqrtmat_sympd::apply_direct(Y, X.get_ref());
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if(status == false)
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{
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Y.soft_reset();
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arma_debug_warn_level(3, "sqrtmat_sympd(): transformation failed");
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}
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return status;
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}
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//! @}
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