/src/fftw3/kernel/extract-reim.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * Copyright (c) 2003, 2007-14 Matteo Frigo |
3 | | * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology |
4 | | * |
5 | | * This program is free software; you can redistribute it and/or modify |
6 | | * it under the terms of the GNU General Public License as published by |
7 | | * the Free Software Foundation; either version 2 of the License, or |
8 | | * (at your option) any later version. |
9 | | * |
10 | | * This program is distributed in the hope that it will be useful, |
11 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | | * GNU General Public License for more details. |
14 | | * |
15 | | * You should have received a copy of the GNU General Public License |
16 | | * along with this program; if not, write to the Free Software |
17 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
18 | | * |
19 | | */ |
20 | | |
21 | | #include "kernel/ifftw.h" |
22 | | |
23 | | /* decompose complex pointer into real and imaginary parts. |
24 | | Flip real and imaginary if there the sign does not match |
25 | | FFTW's idea of what the sign should be */ |
26 | | |
27 | | void X(extract_reim)(int sign, R *c, R **r, R **i) |
28 | 576 | { |
29 | 576 | if (sign == FFT_SIGN) { |
30 | 576 | *r = c + 0; |
31 | 576 | *i = c + 1; |
32 | 576 | } else { |
33 | 0 | *r = c + 1; |
34 | 0 | *i = c + 0; |
35 | 0 | } |
36 | 576 | } |