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armadillo-code/include/armadillo_bits/fn_inv.hpp
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2020-10-20 19:08:06 +10:00

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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 fn_inv
//! @{
template<typename T1>
arma_warn_unused
arma_inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Op<T1, op_inv> >::result
inv
(
const Base<typename T1::elem_type,T1>& X
)
{
arma_extra_debug_sigprint();
return Op<T1, op_inv>(X.get_ref());
}
template<typename T1>
arma_warn_unused
arma_inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Op<T1, op_inv_tr> >::result
inv
(
const Op<T1, op_trimat>& X
)
{
arma_extra_debug_sigprint();
return Op<T1, op_inv_tr>(X.m, X.aux_uword_a, 0);
}
template<typename T1>
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
inv
(
Mat<typename T1::elem_type>& out,
const Base<typename T1::elem_type,T1>& X
)
{
arma_extra_debug_sigprint();
try
{
out = inv(X);
}
catch(std::runtime_error&)
{
return false;
}
return true;
}
template<typename T1>
arma_warn_unused
arma_inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Op<T1, op_inv_sympd> >::result
inv_sympd
(
const Base<typename T1::elem_type, T1>& X
)
{
arma_extra_debug_sigprint();
return Op<T1, op_inv_sympd>(X.get_ref());
}
template<typename T1>
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
inv_sympd
(
Mat<typename T1::elem_type>& out,
const Base<typename T1::elem_type,T1>& X
)
{
arma_extra_debug_sigprint();
try
{
out = inv_sympd(X);
}
catch(std::runtime_error&)
{
return false;
}
return true;
}
//! @}