46 lines
1.8 KiB
C++
46 lines
1.8 KiB
C++
/*********************************************************************
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*
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* AUTHORIZATION TO USE AND DISTRIBUTE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that:
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*
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* (1) source code distributions retain this paragraph in its entirety,
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*
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* (2) distributions including binary code include this paragraph in
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* its entirety in the documentation or other materials provided
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* with the distribution, and
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*
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* (3) all advertising materials mentioning features or use of this
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* software display the following acknowledgment:
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*
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* "This product includes software written and developed
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* by Brian Adamson and Joe Macker of the Naval Research
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* Laboratory (NRL)."
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*
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* The name of NRL, the name(s) of NRL employee(s), or any entity
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* of the United States Government may not be used to endorse or
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* promote products derived from this software, nor does the
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* inclusion of the NRL written and developed software directly or
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* indirectly suggest NRL or United States Government endorsement
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* of this product.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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********************************************************************/
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#ifndef _NORM_GALOIS
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#define _NORM_GALOIS
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namespace Norm
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{
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extern const unsigned char GINV[256];
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extern const unsigned char GEXP[512];
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extern const unsigned char GMULT[256][256];
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}
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inline unsigned char gexp(unsigned int x) {return Norm::GEXP[x];}
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inline unsigned char gmult(unsigned int x, unsigned int y) {return Norm::GMULT[x][y];}
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inline unsigned char ginv(unsigned int x) {return Norm::GINV[x];}
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#endif // _NORM_GALOIS
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