math/fwd_2meta_2partials__type_8hpp_source.html

#ifndef STAN_MATH_FWD_META_PARTIALS_TYPE_HPP

#define STAN_MATH_FWD_META_PARTIALS_TYPE_HPP


#include <stan/math/fwd/core.hpp>

#include <stan/math/fwd/meta/is_fvar.hpp>

#include <stan/math/prim/meta/partials_type.hpp>

#include <type_traits>


namespace stan {


template <typename T>

struct partials_type<T, require_fvar_t<T>> {

  using type = typename std::decay_t<T>::Scalar;

};


}  // namespace stan

#endif

core.hpp

is_fvar.hpp

stan::require_fvar_t
require_t< is_fvar< std::decay_t< T > > > require_fvar_t
Require type satisfies is_fvar.
Definition is_fvar.hpp:25

stan
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
Definition fvar.hpp:9

partials_type.hpp

stan::partials_type< T, require_fvar_t< T > >::type
typename std::decay_t< T >::Scalar type
Definition partials_type.hpp:13

stan::partials_type
This base implementation will contain a static member function named type equal to the type passed in...
Definition partials_type.hpp:12