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/*
Copyright (C) 2021 Daniel Schultz
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 "fmpz.h"
#include "fmpz_mat.h"
void fmpz_mat_fmpz_vec_mul(
fmpz * c,
const fmpz * a, slong alen,
const fmpz_mat_t B)
{
slong i, j;
slong len = FLINT_MIN(B->r, alen);
for (i = B->c - 1; i >= 0; i--)
{
fmpz_zero(c + i);
for (j = 0; j < len; j++)
fmpz_addmul(c + i, a + j, fmpz_mat_entry(B, j, i));
}
}
void fmpz_mat_fmpz_vec_mul_ptr(
fmpz * const * c,
const fmpz * const * a, slong alen,
const fmpz_mat_t B)
{
slong i, j;
slong len = FLINT_MIN(B->r, alen);
for (i = B->c - 1; i >= 0; i--)
{
fmpz_zero(c[i]);
for (j = 0; j < len; j++)
fmpz_addmul(c[i], a[j], fmpz_mat_entry(B, j, i));
}
}