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/*
Copyright (C) 2011, 2012 Sebastian Pancratz
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 "padic.h"
void padic_div(padic_t rop, const padic_t op1, const padic_t op2,
const padic_ctx_t ctx)
{
if (padic_is_zero(op2))
{
flint_throw(FLINT_ERROR, "Exception (padic_div). op2 is zero.\n");
}
if (padic_is_zero(op1) || padic_val(op1) - padic_val(op2) >= padic_prec(rop))
{
padic_zero(rop);
}
else
{
padic_t inv;
padic_init(inv);
_padic_inv(padic_unit(inv), padic_unit(op2), ctx->p,
padic_prec(rop) - padic_val(op1) + padic_val(op2));
padic_val(inv) = - padic_val(op2);
padic_mul(rop, op1, inv, ctx);
padic_clear(inv);
}
}