/*
Copyright (C) 2021 William Hart
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 "ulong_extras.h"
int n_divides(ulong * q, ulong n, ulong p)
{
ulong quo, rem;
if (p == 0)
{
*q = 0;
return n == 0;
}
/* purportedly the compiler optimises this */
quo = n/p;
rem = n%p;
if (rem == 0)
{
*q = quo;
return 1;
} else
{
*q = 0;
return 0;
}
}