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/*
Copyright (C) 2021 Fredrik Johansson
This file is part of Calcium.
Calcium 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 2.1 of the License, or
(at your option) any later version. See <http://www.gnu.org/licenses/>.
*/
#include "fexpr.h"
ulong
fexpr_hash(const fexpr_t expr)
{
ulong head, hash;
slong i, size;
hash = head = expr->data[0];
size = FEXPR_SIZE(head);
for (i = 1; i < size; i++)
hash = expr->data[i] * 1000003 + hash;
return hash;
}
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