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// SPDX-License-Identifier: Apache-2.0
//
// 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_sqrtmat
//! @{
template<typename T1>
arma_warn_unused
arma_inline
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
sqrtmat(const Base<typename T1::elem_type,T1>& X)
{
arma_extra_debug_sigprint();
return mtOp<std::complex<typename T1::elem_type>, T1, op_sqrtmat>(X.get_ref());
}
template<typename T1>
arma_warn_unused
arma_inline
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
sqrtmat(const Base<typename T1::elem_type,T1>& X)
{
arma_extra_debug_sigprint();
return Op<T1, op_sqrtmat_cx>(X.get_ref());
}
template<typename T1>
inline
typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::no), bool >::result
sqrtmat(Mat< std::complex<typename T1::elem_type> >& Y, const Base<typename T1::elem_type,T1>& X)
{
arma_extra_debug_sigprint();
const bool status = op_sqrtmat::apply_direct(Y, X.get_ref());
if(status == false)
{
arma_debug_warn_level(3, "sqrtmat(): given matrix is singular; may not have a square root");
}
return status;
}
template<typename T1>
inline
typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::yes), bool >::result
sqrtmat(Mat<typename T1::elem_type>& Y, const Base<typename T1::elem_type,T1>& X)
{
arma_extra_debug_sigprint();
const bool status = op_sqrtmat_cx::apply_direct(Y, X.get_ref());
if(status == false)
{
arma_debug_warn_level(3, "sqrtmat(): given matrix is singular; may not have a square root");
}
return status;
}
//
template<typename T1>
arma_warn_unused
arma_inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Op<T1, op_sqrtmat_sympd> >::result
sqrtmat_sympd(const Base<typename T1::elem_type,T1>& X)
{
arma_extra_debug_sigprint();
return Op<T1, op_sqrtmat_sympd>(X.get_ref());
}
template<typename T1>
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
sqrtmat_sympd(Mat<typename T1::elem_type>& Y, const Base<typename T1::elem_type,T1>& X)
{
arma_extra_debug_sigprint();
const bool status = op_sqrtmat_sympd::apply_direct(Y, X.get_ref());
if(status == false)
{
Y.soft_reset();
arma_debug_warn_level(3, "sqrtmat_sympd(): transformation failed");
}
return status;
}
//! @}
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