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/*
Copyright (C) 2023 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 "gr_vec.h"
#include "gr_mat.h"
int
gr_mat_concat_horizontal(gr_mat_t res, const gr_mat_t mat1, const gr_mat_t mat2, gr_ctx_t ctx)
{
int status = GR_SUCCESS;
slong i;
slong r1 = mat1->r;
slong c1 = mat1->c;
slong c2 = mat2->c;
slong sz = ctx->sizeof_elem;
if (mat1->r != mat2->r || res->c != mat1->c + mat2->c)
return GR_DOMAIN;
for (i = 0; i < r1; i++)
{
if (c1 > 0)
status |= _gr_vec_set(res->rows[i], mat1->rows[i], c1, ctx);
if (c2 > 0)
status |= _gr_vec_set(GR_ENTRY(res->rows[i], c1, sz), mat2->rows[i], c2, ctx);
}
return status;
}