Stan Math Library  2.15.0
reverse mode automatic differentiation
boost_isnan.hpp
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1 #ifndef STAN_MATH_REV_SCAL_FUN_BOOST_ISNAN_HPP
2 #define STAN_MATH_REV_SCAL_FUN_BOOST_ISNAN_HPP
3 
4 #include <boost/math/special_functions/fpclassify.hpp>
5 #include <stan/math/rev/core.hpp>
6 
7 namespace boost {
8  namespace math {
9 
19  template <>
20  inline
21  bool isnan(const stan::math::var& v) {
22  return (boost::math::isnan)(v.val());
23  }
24 
25  }
26 }
27 #endif
28 
Reimplementing boost functionality.
Independent (input) and dependent (output) variables for gradients.
Definition: var.hpp:30
bool isnan(const stan::math::var &v)
Checks if the given number is NaN.
Definition: boost_isnan.hpp:21
double val() const
Return the value of this variable.
Definition: var.hpp:230

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