1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
// 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 op_reverse
//! @{
template<typename T1>
inline
void
op_reverse::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_reverse>& in)
{
arma_extra_debug_sigprint();
typedef typename T1::elem_type eT;
const uword dim = in.aux_uword_a;
arma_debug_check( (dim > 1), "reverse(): parameter 'dim' must be 0 or 1" );
if(is_Mat<T1>::value)
{
// allow detection of in-place operation
const unwrap<T1> U(in.m);
if(dim == 0) { op_flipud::apply_direct(out, U.M); }
if(dim == 1) { op_fliplr::apply_direct(out, U.M); }
}
else
{
const Proxy<T1> P(in.m);
if(P.is_alias(out))
{
Mat<eT> tmp;
if(dim == 0) { op_flipud::apply_proxy_noalias(tmp, P); }
if(dim == 1) { op_fliplr::apply_proxy_noalias(tmp, P); }
out.steal_mem(tmp);
}
else
{
if(dim == 0) { op_flipud::apply_proxy_noalias(out, P); }
if(dim == 1) { op_fliplr::apply_proxy_noalias(out, P); }
}
}
}
template<typename T1>
inline
void
op_reverse_vec::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_reverse_vec>& in)
{
arma_extra_debug_sigprint();
typedef typename T1::elem_type eT;
if(is_Mat<T1>::value)
{
// allow detection of in-place operation
const unwrap<T1> U(in.m);
if((T1::is_xvec) ? bool(U.M.is_rowvec()) : bool(T1::is_row))
{
op_fliplr::apply_direct(out, U.M);
}
else
{
op_flipud::apply_direct(out, U.M);
}
}
else
{
const Proxy<T1> P(in.m);
if(P.is_alias(out))
{
Mat<eT> tmp;
if((T1::is_xvec) ? bool(P.get_n_rows() == 1) : bool(T1::is_row))
{
op_fliplr::apply_proxy_noalias(tmp, P);
}
else
{
op_flipud::apply_proxy_noalias(tmp, P);
}
out.steal_mem(tmp);
}
else
{
if((T1::is_xvec) ? bool(P.get_n_rows() == 1) : bool(T1::is_row))
{
op_fliplr::apply_proxy_noalias(out, P);
}
else
{
op_flipud::apply_proxy_noalias(out, P);
}
}
}
}
//! @}
|
