pqc/external/flint-2.4.3/fq_zech/mul_si.c
2014-05-24 23:16:06 +02:00

50 lines
1.5 KiB
C

/*=============================================================================
This file is part of FLINT.
FLINT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FLINT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2013 Mike Hansen
******************************************************************************/
#include "fq_zech.h"
void
fq_zech_mul_si(fq_zech_t rop, const fq_zech_t op, const slong x,
const fq_zech_ctx_t ctx)
{
mp_limb_t y;
if (x == 0 || fq_zech_is_zero(op, ctx))
{
fq_zech_zero(rop, ctx);
return;
}
if (x < 0)
{
y = -x;
fq_zech_mul_ui(rop, op, y, ctx);
fq_zech_neg(rop, rop, ctx);
}
else
{
y = x;
fq_zech_mul_ui(rop, op, y, ctx);
}
}