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/*!
\file
\brief Forward declaration for the class KLContext and associated types.
*/
/*
  This is kl_fwd.h

  Copyright (C) 2004,2005 Fokko du Cloux
  part of the Atlas of Reductive Lie Groups

  See file main.cpp for full copyright notice
*/

#ifndef KL_FWD_H  /* guard against multiple inclusions */
#define KL_FWD_H

#include <set>
#include <vector>

#include "polynomials_fwd.h"
#include "blocks_fwd.h"

namespace atlas {

/******** type declarations *************************************************/

namespace kl {

class KLContext;

/*!
\brief Coefficient of a KL polynomial.

Must be a standard unsigned type; now "unsigned" which [at least on my
Mac; not sure what the standard says - DV 8/14/06] is unsigned long.
*/
typedef unsigned int KLCoeff;

/*!
\brief Polynomial with coefficients of type KLCoeff.
*/
typedef polynomials::Polynomial<KLCoeff> KLPol;

typedef unsigned int KLIndex; // less than 2^32 distinct polynomials for E8 !


typedef KLCoeff MuCoeff;

// a pair of vectors may be much more compact that a vector of pairs
typedef std::pair<std::vector<blocks::BlockElt>,std::vector<MuCoeff> > MuRow;

}

}

#endif

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