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29adde838c
+ - * / % << >> log2 compare are supported and dont fear, no bloated lib, just 130 lines of c code Originally committed as revision 3105 to svn://svn.ffmpeg.org/ffmpeg/trunk
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/*
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* arbitrary precision integers
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* Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/**
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* @file integer.h
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* arbitrary precision integers
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* @author Michael Niedermayer <michaelni@gmx.at>
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*/
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#ifndef INTEGER_H
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#define INTEGER_H
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#define AV_INTEGER_SIZE 8
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typedef struct AVInteger{
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uint16_t v[AV_INTEGER_SIZE];
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} AVInteger;
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AVInteger av_add_i(AVInteger a, AVInteger b);
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AVInteger av_sub_i(AVInteger a, AVInteger b);
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int av_log2_i(AVInteger a);
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AVInteger av_mul_i(AVInteger a, AVInteger b);
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int av_cmp_i(AVInteger a, AVInteger b);
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AVInteger av_shr_i(AVInteger a, int s);
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AVInteger av_mod_i(AVInteger *quot, AVInteger a, AVInteger b);
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AVInteger av_div_i(AVInteger a, AVInteger b);
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AVInteger av_int2i(int64_t a);
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int64_t av_i2int(AVInteger a);
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#endif // INTEGER_H
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