alps.h

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#if !defined(VITA_ALPS_H)
#define      VITA_ALPS_H
 
namespace vita::alps
{
 
struct parameters
{
  [[nodiscard]] unsigned allowed_age(unsigned, unsigned) const;
  [[nodiscard]] unsigned max_age(unsigned) const;
 
  template<class T> [[nodiscard]] bool aged(const T &,
                                            unsigned, unsigned) const;
 
  unsigned age_gap = 20;
 
  double p_same_layer = 0.75;
};
 
template<class T> bool parameters::aged(const T &p,
                                        unsigned l, unsigned layers) const
{
  return p.age() > allowed_age(l, layers);
}
 
}  // namespace vita::alps
 
#endif  // include guard