traits.hpp

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#ifndef __STAN__PROB__TRAITS_HPP__
#define __STAN__PROB__TRAITS_HPP__
 
#include <stan/meta/traits.hpp>
#include <boost/math/tools/promotion.hpp>
 
namespace stan {
 
  namespace prob {
 
    template <bool propto,
              typename T1=double, typename T2=double, 
              typename T3=double, typename T4=double,
              typename T5=double, typename T6=double>
    struct include_summand {
 
      enum { 
        value =  ( !propto
                   || !stan::is_constant<typename scalar_type<T1>::type>::value
                   || !stan::is_constant<typename scalar_type<T2>::type>::value
                   || !stan::is_constant<typename scalar_type<T3>::type>::value
                   || !stan::is_constant<typename scalar_type<T4>::type>::value
                   || !stan::is_constant<typename scalar_type<T5>::type>::value
                   || !stan::is_constant<typename scalar_type<T6>::type>::value 
                   )
 
      };
 
    };
 
 
  }
 
}
 
#endif