compare_value.h

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#ifndef MYGSL_COMPARE_VALUE_H
#define MYGSL_COMPARE_VALUE_H

namespace mygsl {

  enum compare_score_type {
    COMPARE_LESS_EQUAL    = -2,
    COMPARE_LESS          = -1,
    COMPARE_EQUAL         =  0,
    COMPARE_GREATER       =  1,
    COMPARE_GREATER_EQUAL =  2,
    COMPARE_UNORDERED     =  3
  };

  compare_score_type compare_relative(double x_, double y_, double epsilon_);

  compare_score_type compare_absolute(double x_, double y_, double epsilon_);

  bool approximately_equal(double x_, double y_, double epsilon_);

  bool essentially_equal(double x_, double b, double epsilon_);

  bool definitely_greater_than(double x_, double y_, double epsilon_);

  bool definitely_less_than(double x_, double b, double epsilon_);

  bool nearly_equal(double x_, double y_, double epsilon_);

} // namespace mygsl

#endif // MYGSL_COMPARE_VALUE_H