rational.h

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#ifndef GUM_RATIONAL_H
#define GUM_RATIONAL_H

#include <iomanip>
#include <iostream>
#include <sstream>
#include <stdlib.h>
#include <vector>
#include <agrum/core/math/math.h>

// 64 bits for windows (long is 32 bits)
#ifdef _MSC_VER
typedef __int64          int64_t;
typedef unsigned __int64 uint64_t;
#else
#  include <stdint.h>
#endif

namespace gum {

  template < typename GUM_SCALAR >
  class Rational {
    public:
    // ========================================================================
    // ========================================================================

    static void farey(int64_t&          numerator,
                      int64_t&          denominator,
                      const GUM_SCALAR& number,
                      const int64_t&    den_max = 1000000L,
                      const GUM_SCALAR& zero = 1e-6);

    static void continuedFracFirst(int64_t&          numerator,
                                   int64_t&          denominator,
                                   const GUM_SCALAR& number,
                                   const double&     zero = 1e-6);

    static void continuedFracBest(int64_t&          numerator,
                                  int64_t&          denominator,
                                  const GUM_SCALAR& number,
                                  const int64_t&    den_max = 1000000);

  };

}   // namespace gum


#ifndef GUM_NO_EXTERN_TEMPLATE_CLASS
#  ifndef GUM_NO_EXTERN_TEMPLATE_CLASS
extern template class gum::Rational< double >;
#  endif
#endif
#ifndef GUM_NO_EXTERN_TEMPLATE_CLASS
#  ifndef GUM_NO_EXTERN_TEMPLATE_CLASS
extern template class gum::Rational< long double >;
#  endif
#endif


// Always include template implementation in header file
#include <agrum/core/math/rational_tpl.h>

#endif   // GUM_RATIONAL_H