math/fwd_2fun_2is__nan_8hpp_source.html

#ifndef STAN_MATH_FWD_FUN_IS_NAN_HPP

#define STAN_MATH_FWD_FUN_IS_NAN_HPP


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

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

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

#include <stan/math/prim/fun/is_nan.hpp>


namespace stan {

namespace math {


template <typename T, require_fvar_t<T>* = nullptr>

inline bool is_nan(T&& x) {

  return is_nan(std::forward<decltype(x.val())>(x.val()));

}


}  // namespace math

}  // namespace stan

#endif

core.hpp

meta.hpp

stan::math::is_nan
bool is_nan(T &&x)
Returns 1 if the input's value is NaN and 0 otherwise.
Definition is_nan.hpp:22

stan
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
Definition unit_vector_constrain.hpp:15

is_nan.hpp

meta.hpp