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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"
void
fexpr_func(fexpr_t res, const fexpr_t expr)
{
ulong type = FEXPR_TYPE(expr->data[0]);
slong size;
const ulong * data;
if (FEXPR_TYPE_CALL0 <= type && type <= FEXPR_TYPE_CALL4)
{
data = expr->data + FEXPR_HEADER_SIZE;
}
else if (type == FEXPR_TYPE_CALLN)
{
data = expr->data + expr->data[2];
}
else
{
flint_printf("fexpr_func: a non-atomic expression is required\n");
flint_abort();
}
size = FEXPR_SIZE(data[0]);
fexpr_fit_size(res, size);
flint_mpn_copyi(res->data, data, size);
}
void
fexpr_view_func(fexpr_t res, const fexpr_t expr)
{
ulong type = FEXPR_TYPE(expr->data[0]);
const ulong * data;
if (FEXPR_TYPE_CALL0 <= type && type <= FEXPR_TYPE_CALL4)
{
data = expr->data + FEXPR_HEADER_SIZE;
}
else if (type == FEXPR_TYPE_CALLN)
{
data = expr->data + expr->data[2];
}
else
{
flint_printf("fexpr_view_func: a non-atomic expression is required\n");
flint_abort();
}
res->data = (ulong *) data;
res->alloc = 0;
}
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