Omega_h_functors.hpp

#ifndef OMEGA_H_FUNCTORS_HPP
#define OMEGA_H_FUNCTORS_HPP
 
#include <Omega_h_scalar.hpp>
 
namespace Omega_h {
 
struct AndFunctor {
  typedef I64 value_type;
  OMEGA_H_INLINE void init(value_type& update) const { update = 1; }
  OMEGA_H_INLINE void join(
      volatile value_type& update, const volatile value_type& input) const {
    update = update && input;
  }
};
 
template <typename T>
struct MaxFunctor {
  typedef promoted_t<T> value_type;
  typedef T input_type;
  OMEGA_H_INLINE void init(value_type& update) const {
    update = ArithTraits<T>::min();
  }
  OMEGA_H_INLINE void join(
      volatile value_type& update, const volatile value_type& input) const {
    update = max2(update, input);
  }
};
 
template <typename T>
struct MinFunctor {
  typedef promoted_t<T> value_type;
  typedef T input_type;
  OMEGA_H_INLINE void init(value_type& update) const {
    update = ArithTraits<T>::max();
  }
  OMEGA_H_INLINE void join(
      volatile value_type& update, const volatile value_type& input) const {
    update = min2(update, input);
  }
};
 
template <typename T>
struct SumFunctor {
  using value_type = promoted_t<T>;
  using input_type = T;
  OMEGA_H_INLINE void init(value_type& update) const { update = 0; }
  OMEGA_H_INLINE void join(
      volatile value_type& update, const volatile value_type& input) const {
    update = update + input;
  }
};
 
}  // end namespace Omega_h
 
#endif