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/*
Copyright (C) 2020 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 "ca_mat.h"
void
ca_mat_sub_ca(ca_mat_t y, const ca_mat_t a, const ca_t x, ca_ctx_t ctx)
{
slong i, j, n;
if (a == y)
{
n = FLINT_MIN(ca_mat_nrows(a), ca_mat_ncols(a));
for (i = 0; i < n; i++)
ca_sub(ca_mat_entry(y, i, i), ca_mat_entry(y, i, i), x, ctx);
}
else
{
for (i = 0; i < ca_mat_nrows(a); i++)
{
for (j = 0; j < ca_mat_ncols(a); j++)
{
if (i == j)
ca_sub(ca_mat_entry(y, i, j), ca_mat_entry(a, i, j), x, ctx);
else
ca_set(ca_mat_entry(y, i, j), ca_mat_entry(a, i, j), ctx);
}
}
}
}