math/opencl_2scalar__type_8hpp_source.html

#ifndef STAN_MATH_OPENCL_SCALAR_TYPE_HPP

#define STAN_MATH_OPENCL_SCALAR_TYPE_HPP

#ifdef STAN_OPENCL


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

#include <type_traits>


namespace stan {


template <typename T>

struct scalar_type<T, require_all_kernel_expressions_and_none_scalar_t<T>> {

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

};

}  // namespace stan

#endif

#endif

stan::require_all_kernel_expressions_and_none_scalar_t
require_all_t< is_kernel_expression_and_not_scalar< Types >... > require_all_kernel_expressions_and_none_scalar_t
Enables a template if all given types are non-scalar types that are a valid kernel generator expressi...
Definition is_kernel_expression.hpp:58

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

meta.hpp

stan::scalar_type< T, require_all_kernel_expressions_and_none_scalar_t< T > >::type
typename scalar_type< typename std::decay_t< T >::Scalar >::type type
Definition scalar_type.hpp:15

stan::scalar_type::type
std::decay_t< T > type
Definition scalar_type.hpp:21

stan::scalar_type
Metaprogram structure to determine the base scalar type of a template argument.
Definition scalar_type.hpp:20