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
/*
Copyright (C) 2015 Tommy Hofmann
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "acb.h"
#include "acb_mat.h"
void
acb_mat_transpose(acb_mat_t B, const acb_mat_t A)
{
slong i, j;
if (acb_mat_nrows(B) != acb_mat_ncols(A) || acb_mat_ncols(B) != acb_mat_nrows(A))
{
flint_throw(FLINT_ERROR, "Exception (acb_mat_transpose). Incompatible dimensions.\n");
}
if (acb_mat_is_empty(A))
return;
if (A == B) /* In-place, guaranteed to be square */
{
for (i = 0; i < acb_mat_nrows(A) - 1; i++)
{
for (j = i + 1; j < acb_mat_ncols(A); j++)
{
acb_swap(acb_mat_entry(A, i, j), acb_mat_entry(A, j, i));
}
}
}
else /* Not aliased; general case */
{
for (i = 0; i < acb_mat_nrows(B); i++)
for (j = 0; j < acb_mat_ncols(B); j++)
acb_set(acb_mat_entry(B, i, j), acb_mat_entry(A, j, i));
}
}