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is_nan.hpp
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1 #ifndef STAN_MATH_FWD_SCAL_FUN_IS_NAN_HPP
2 #define STAN_MATH_FWD_SCAL_FUN_IS_NAN_HPP
3
4 #include <stan/math/fwd/core.hpp>
5 #include <stan/math/prim/scal/fun/is_nan.hpp>
6
7 namespace stan {
8
9 namespace math {
10
19 template <typename T>
20 inline
21 int
22 is_nan(const fvar<T>& x) {
23 using stan::math::is_nan;
24 return is_nan(x.val());
25 }
26
27 }
28 }
29
30 #endif
core.hpp
is_nan.hpp
stan::math::fvar::val
T val() const
Definition: fvar.hpp:17
stan::math::is_nan
int is_nan(const fvar< T > &x)
Returns 1 if the input's value is NaN and 0 otherwise.
Definition: is_nan.hpp:22
stan::math::fvar
Definition: fvar.hpp:13

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