1/*
2 * Copyright (c) 2008-2020 Stefan Krah. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28
29#ifndef LIBMPDEC_TRANSPOSE_H_
30#define LIBMPDEC_TRANSPOSE_H_
31
32
33#include "mpdecimal.h"
34
35
36/* Internal header file: all symbols have local scope in the DSO */
37MPD_PRAGMA(MPD_HIDE_SYMBOLS_START)
38
39
40enum {FORWARD_CYCLE, BACKWARD_CYCLE};
41
42
43void std_trans(mpd_uint_t dest[], mpd_uint_t src[], mpd_size_t rows, mpd_size_t cols);
44int transpose_pow2(mpd_uint_t *matrix, mpd_size_t rows, mpd_size_t cols);
45void transpose_3xpow2(mpd_uint_t *matrix, mpd_size_t rows, mpd_size_t cols);
46
47
48static inline void pointerswap(mpd_uint_t **a, mpd_uint_t **b)
49{
50    mpd_uint_t *tmp;
51
52    tmp = *b;
53    *b = *a;
54    *a = tmp;
55}
56
57
58MPD_PRAGMA(MPD_HIDE_SYMBOLS_END) /* restore previous scope rules */
59
60
61#endif /* LIBMPDEC_TRANSPOSE_H_ */
62