is_autodiff.hpp

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#ifndef STAN_MATH_PRIM_META_IS_AUTODIFF_HPP
#define STAN_MATH_PRIM_META_IS_AUTODIFF_HPP
 
#include <stan/math/prim/meta/is_var.hpp>
#include <stan/math/prim/meta/is_fvar.hpp>
#include <stan/math/prim/meta/require_helpers.hpp>
#include <complex>
#include <type_traits>
 
namespace stan {
 
template <typename T>
struct is_autodiff
    : bool_constant<math::disjunction<is_var<std::decay_t<T>>,
                                      is_fvar<std::decay_t<T>>>::value> {};
 
template <typename T>
inline constexpr bool is_autodiff_v = is_autodiff<T>::value;
 
template <typename T>
using require_autodiff_t = require_t<is_autodiff<std::decay_t<T>>>;
 
template <typename T>
using require_not_autodiff_t = require_not_t<is_autodiff<std::decay_t<T>>>;
 
template <typename... Types>
using require_all_autodiff_t
    = require_all_t<is_autodiff<std::decay_t<Types>>...>;
 
template <typename... Types>
using require_any_autodiff_t
    = require_any_t<is_autodiff<std::decay_t<Types>>...>;
 
template <typename... Types>
using require_all_not_autodiff_t
    = require_all_not_t<is_autodiff<std::decay_t<Types>>...>;
 
template <typename... Types>
using require_any_not_autodiff_t
    = require_any_not_t<is_autodiff<std::decay_t<Types>>...>;
template <typename T>
using require_not_vt_autodiff
    = require_not_t<is_autodiff<value_type_t<std::decay_t<T>>>>;
 
template <typename... Types>
using require_all_not_vt_autodiff
    = require_all_not_t<is_autodiff<value_type_t<std::decay_t<Types>>>...>;
 
template <typename T>
using require_st_autodiff
    = require_t<is_autodiff<scalar_type_t<std::decay_t<T>>>>;
 
template <typename T>
using require_not_st_autodiff
    = require_not_t<is_autodiff<scalar_type_t<std::decay_t<T>>>>;
 
template <typename... Types>
using require_any_st_autodiff
    = require_any_t<is_autodiff<scalar_type_t<std::decay_t<Types>>>...>;
}  // namespace stan
 
#endif