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
/*
Copyright (C) 2010 William Hart
Copyright (C) 2011 Fredrik Johansson
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 "long_extras.h"
#include "fmpq_mat.h"
void fmpq_mat_init(fmpq_mat_t mat, slong rows, slong cols)
{
slong i;
mat->r = rows;
mat->c = cols;
mat->stride = cols;
mat->entries = NULL;
if (rows != 0 && cols != 0)
{
slong num;
if (z_mul_checked(&num, rows, cols))
flint_throw(FLINT_ERROR, "Overflow creating a %wd x %wd object\n", rows, cols);
mat->entries = flint_malloc(num * sizeof(fmpq));
for (i = 0; i < rows * cols; i++)
{
mat->entries[i].num = 0;
mat->entries[i].den = 1;
}
}
}