571 lines
12 KiB
C++
571 lines
12 KiB
C++
// 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 operator_minus
|
|
//! @{
|
|
|
|
|
|
|
|
//! unary -
|
|
template<typename T1>
|
|
arma_inline
|
|
typename
|
|
enable_if2< is_arma_type<T1>::value, const eOp<T1, eop_neg> >::result
|
|
operator-
|
|
(const T1& X)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return eOp<T1,eop_neg>(X);
|
|
}
|
|
|
|
|
|
|
|
//! Base - scalar
|
|
template<typename T1>
|
|
arma_inline
|
|
typename
|
|
enable_if2< is_arma_type<T1>::value, const eOp<T1, eop_scalar_minus_post> >::result
|
|
operator-
|
|
(
|
|
const T1& X,
|
|
const typename T1::elem_type k
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return eOp<T1, eop_scalar_minus_post>(X, k);
|
|
}
|
|
|
|
|
|
|
|
//! scalar - Base
|
|
template<typename T1>
|
|
arma_inline
|
|
typename
|
|
enable_if2< is_arma_type<T1>::value, const eOp<T1, eop_scalar_minus_pre> >::result
|
|
operator-
|
|
(
|
|
const typename T1::elem_type k,
|
|
const T1& X
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return eOp<T1, eop_scalar_minus_pre>(X, k);
|
|
}
|
|
|
|
|
|
|
|
//! complex scalar - non-complex Base
|
|
template<typename T1>
|
|
arma_inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_type<T1>::value && is_cx<typename T1::elem_type>::no),
|
|
const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_pre>
|
|
>::result
|
|
operator-
|
|
(
|
|
const std::complex<typename T1::pod_type>& k,
|
|
const T1& X
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_pre>('j', X, k);
|
|
}
|
|
|
|
|
|
|
|
//! non-complex Base - complex scalar
|
|
template<typename T1>
|
|
arma_inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_type<T1>::value && is_cx<typename T1::elem_type>::no),
|
|
const mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_post>
|
|
>::result
|
|
operator-
|
|
(
|
|
const T1& X,
|
|
const std::complex<typename T1::pod_type>& k
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return mtOp<typename std::complex<typename T1::pod_type>, T1, op_cx_scalar_minus_post>('j', X, k);
|
|
}
|
|
|
|
|
|
|
|
//! subtraction of Base objects with same element type
|
|
template<typename T1, typename T2>
|
|
arma_inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
is_arma_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value,
|
|
const eGlue<T1, T2, eglue_minus>
|
|
>::result
|
|
operator-
|
|
(
|
|
const T1& X,
|
|
const T2& Y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return eGlue<T1, T2, eglue_minus>(X, Y);
|
|
}
|
|
|
|
|
|
|
|
//! subtraction of Base objects with different element types
|
|
template<typename T1, typename T2>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_type<T1>::value && is_arma_type<T2>::value && (is_same_type<typename T1::elem_type, typename T2::elem_type>::no)),
|
|
const mtGlue<typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, glue_mixed_minus>
|
|
>::result
|
|
operator-
|
|
(
|
|
const T1& X,
|
|
const T2& Y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
typedef typename T1::elem_type eT1;
|
|
typedef typename T2::elem_type eT2;
|
|
|
|
typedef typename promote_type<eT1,eT2>::result out_eT;
|
|
|
|
promote_type<eT1,eT2>::check();
|
|
|
|
return mtGlue<out_eT, T1, T2, glue_mixed_minus>( X, Y );
|
|
}
|
|
|
|
|
|
|
|
//! unary "-" for sparse objects
|
|
template<typename T1>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
is_arma_sparse_type<T1>::value && is_signed<typename T1::elem_type>::value,
|
|
SpOp<T1,spop_scalar_times>
|
|
>::result
|
|
operator-
|
|
(const T1& X)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
typedef typename T1::elem_type eT;
|
|
|
|
return SpOp<T1,spop_scalar_times>(X, eT(-1));
|
|
}
|
|
|
|
|
|
|
|
//! subtraction of two sparse objects
|
|
template<typename T1, typename T2>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
|
|
const SpGlue<T1,T2,spglue_minus>
|
|
>::result
|
|
operator-
|
|
(
|
|
const T1& X,
|
|
const T2& Y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return SpGlue<T1,T2,spglue_minus>(X,Y);
|
|
}
|
|
|
|
|
|
|
|
//! subtraction of one sparse and one dense object
|
|
template<typename T1, typename T2>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
|
|
Mat<typename T1::elem_type>
|
|
>::result
|
|
operator-
|
|
(
|
|
const T1& x,
|
|
const T2& y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const SpProxy<T1> pa(x);
|
|
|
|
Mat<typename T1::elem_type> result(-y);
|
|
|
|
arma_debug_assert_same_size( pa.get_n_rows(), pa.get_n_cols(), result.n_rows, result.n_cols, "subtraction" );
|
|
|
|
typename SpProxy<T1>::const_iterator_type it = pa.begin();
|
|
typename SpProxy<T1>::const_iterator_type it_end = pa.end();
|
|
|
|
while(it != it_end)
|
|
{
|
|
result.at(it.row(), it.col()) += (*it);
|
|
++it;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
//! subtraction of one dense and one sparse object
|
|
template<typename T1, typename T2>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::value),
|
|
Mat<typename T1::elem_type>
|
|
>::result
|
|
operator-
|
|
(
|
|
const T1& x,
|
|
const T2& y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
Mat<typename T1::elem_type> result(x);
|
|
|
|
const SpProxy<T2> pb(y);
|
|
|
|
arma_debug_assert_same_size( result.n_rows, result.n_cols, pb.get_n_rows(), pb.get_n_cols(), "subtraction" );
|
|
|
|
typename SpProxy<T2>::const_iterator_type it = pb.begin();
|
|
typename SpProxy<T2>::const_iterator_type it_end = pb.end();
|
|
|
|
while(it != it_end)
|
|
{
|
|
result.at(it.row(), it.col()) -= (*it);
|
|
++it;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
|
|
//! subtraction of two sparse objects with different element types
|
|
template<typename T1, typename T2>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_sparse_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no),
|
|
const mtSpGlue< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result, T1, T2, spglue_minus_mixed >
|
|
>::result
|
|
operator-
|
|
(
|
|
const T1& X,
|
|
const T2& Y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
typedef typename T1::elem_type eT1;
|
|
typedef typename T2::elem_type eT2;
|
|
|
|
typedef typename promote_type<eT1,eT2>::result out_eT;
|
|
|
|
promote_type<eT1,eT2>::check();
|
|
|
|
return mtSpGlue<out_eT, T1, T2, spglue_minus_mixed>( X, Y );
|
|
}
|
|
|
|
|
|
|
|
//! subtraction of sparse and non-sparse objects with different element types
|
|
template<typename T1, typename T2>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_sparse_type<T1>::value && is_arma_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no),
|
|
Mat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result >
|
|
>::result
|
|
operator-
|
|
(
|
|
const T1& x,
|
|
const T2& y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
Mat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > out;
|
|
|
|
spglue_minus_mixed::sparse_minus_dense(out, x, y);
|
|
|
|
return out;
|
|
}
|
|
|
|
|
|
|
|
//! subtraction of sparse and non-sparse objects with different element types
|
|
template<typename T1, typename T2>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_type<T1>::value && is_arma_sparse_type<T2>::value && is_same_type<typename T1::elem_type, typename T2::elem_type>::no),
|
|
Mat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result >
|
|
>::result
|
|
operator-
|
|
(
|
|
const T1& x,
|
|
const T2& y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
Mat< typename promote_type<typename T1::elem_type, typename T2::elem_type>::result > out;
|
|
|
|
spglue_minus_mixed::dense_minus_sparse(out, x, y);
|
|
|
|
return out;
|
|
}
|
|
|
|
|
|
|
|
//! sparse - scalar
|
|
template<typename T1>
|
|
arma_inline
|
|
typename
|
|
enable_if2< is_arma_sparse_type<T1>::value, const SpToDOp<T1, op_sp_minus_post> >::result
|
|
operator-
|
|
(
|
|
const T1& X,
|
|
const typename T1::elem_type k
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return SpToDOp<T1, op_sp_minus_post>(X, k);
|
|
}
|
|
|
|
|
|
|
|
//! scalar - sparse
|
|
template<typename T1>
|
|
arma_inline
|
|
typename
|
|
enable_if2< is_arma_sparse_type<T1>::value, const SpToDOp<T1, op_sp_minus_pre> >::result
|
|
operator-
|
|
(
|
|
const typename T1::elem_type k,
|
|
const T1& X
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return SpToDOp<T1, op_sp_minus_pre>(X, k);
|
|
}
|
|
|
|
|
|
|
|
// TODO: this is an uncommon use case; remove?
|
|
//! multiple applications of add/subtract scalars can be condensed
|
|
template<typename T1, typename op_type>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_sparse_type<T1>::value &&
|
|
(is_same_type<op_type, op_sp_plus>::value ||
|
|
is_same_type<op_type, op_sp_minus_post>::value)),
|
|
const SpToDOp<T1, op_sp_minus_post>
|
|
>::result
|
|
operator-
|
|
(
|
|
const SpToDOp<T1, op_type>& x,
|
|
const typename T1::elem_type k
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const typename T1::elem_type aux = (is_same_type<op_type, op_sp_plus>::value) ? -x.aux : x.aux;
|
|
|
|
return SpToDOp<T1, op_sp_minus_post>(x.m, aux + k);
|
|
}
|
|
|
|
|
|
|
|
// TODO: this is an uncommon use case; remove?
|
|
//! multiple applications of add/subtract scalars can be condensed
|
|
template<typename T1, typename op_type>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_sparse_type<T1>::value &&
|
|
(is_same_type<op_type, op_sp_plus>::value ||
|
|
is_same_type<op_type, op_sp_minus_post>::value)),
|
|
const SpToDOp<T1, op_sp_minus_pre>
|
|
>::result
|
|
operator-
|
|
(
|
|
const typename T1::elem_type k,
|
|
const SpToDOp<T1, op_type>& x
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const typename T1::elem_type aux = (is_same_type<op_type, op_sp_plus>::value) ? -x.aux : x.aux;
|
|
|
|
return SpToDOp<T1, op_sp_minus_pre>(x.m, k + aux);
|
|
}
|
|
|
|
|
|
|
|
// TODO: this is an uncommon use case; remove?
|
|
//! multiple applications of add/subtract scalars can be condensed
|
|
template<typename T1, typename op_type>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_sparse_type<T1>::value &&
|
|
is_same_type<op_type, op_sp_minus_pre>::value),
|
|
const SpToDOp<T1, op_sp_minus_pre>
|
|
>::result
|
|
operator-
|
|
(
|
|
const SpToDOp<T1, op_type>& x,
|
|
const typename T1::elem_type k
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return SpToDOp<T1, op_sp_minus_pre>(x.m, x.aux - k);
|
|
}
|
|
|
|
|
|
|
|
// TODO: this is an uncommon use case; remove?
|
|
//! multiple applications of add/subtract scalars can be condensed
|
|
template<typename T1, typename op_type>
|
|
inline
|
|
typename
|
|
enable_if2
|
|
<
|
|
(is_arma_sparse_type<T1>::value &&
|
|
is_same_type<op_type, op_sp_minus_pre>::value),
|
|
const SpToDOp<T1, op_sp_plus>
|
|
>::result
|
|
operator-
|
|
(
|
|
const typename T1::elem_type k,
|
|
const SpToDOp<T1, op_type>& x
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return SpToDOp<T1, op_sp_plus>(x.m, k - x.aux);
|
|
}
|
|
|
|
|
|
|
|
template<typename parent, unsigned int mode, typename T2>
|
|
arma_inline
|
|
Mat<typename parent::elem_type>
|
|
operator-
|
|
(
|
|
const subview_each1<parent,mode>& X,
|
|
const Base<typename parent::elem_type,T2>& Y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return subview_each1_aux::operator_minus(X, Y.get_ref());
|
|
}
|
|
|
|
|
|
|
|
template<typename T1, typename parent, unsigned int mode>
|
|
arma_inline
|
|
Mat<typename parent::elem_type>
|
|
operator-
|
|
(
|
|
const Base<typename parent::elem_type,T1>& X,
|
|
const subview_each1<parent,mode>& Y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return subview_each1_aux::operator_minus(X.get_ref(), Y);
|
|
}
|
|
|
|
|
|
|
|
template<typename parent, unsigned int mode, typename TB, typename T2>
|
|
arma_inline
|
|
Mat<typename parent::elem_type>
|
|
operator-
|
|
(
|
|
const subview_each2<parent,mode,TB>& X,
|
|
const Base<typename parent::elem_type,T2>& Y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return subview_each2_aux::operator_minus(X, Y.get_ref());
|
|
}
|
|
|
|
|
|
|
|
template<typename T1, typename parent, unsigned int mode, typename TB>
|
|
arma_inline
|
|
Mat<typename parent::elem_type>
|
|
operator-
|
|
(
|
|
const Base<typename parent::elem_type,T1>& X,
|
|
const subview_each2<parent,mode,TB>& Y
|
|
)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
return subview_each2_aux::operator_minus(X.get_ref(), Y);
|
|
}
|
|
|
|
|
|
|
|
//! @}
|