flint-sys 0.9.0

Bindings to the FLINT C library
Documentation
/*
    Copyright (C) 2013 Mike Hansen

    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 "fq_zech.h"

void
fq_zech_neg(fq_zech_t rop, const fq_zech_t op1, const fq_zech_ctx_t ctx)
{
    if (op1->value == ctx->qm1)
    {
        rop->value = ctx->qm1;
        return;
    }
    rop->value = op1->value + ctx->qm1o2;
    if (rop->value >= ctx->qm1)
    {
        rop->value -= ctx->qm1;
    }
}