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 #ifndef STAN__MATH__FUNCTIONS__LOG1M_INV_LOGIT_HPP

 #define STAN__MATH__FUNCTIONS__LOG1M_INV_LOGIT_HPP


 #include <boost/math/tools/promotion.hpp>


 namespace stan {

   namespace math {


     template <typename T>

     inline typename boost::math::tools::promote_args<T>::type

     log1m_inv_logit(const T u) {

       using std::exp;

       if (u > 0.0)

         return -u - log1p(exp(-u));  // prevent underflow

       return -log1p(exp(u));

     }


   }

 }


 #endif

stan::math::log1p
boost::math::tools::promote_args< T >::type log1p(const T x)
Return the natural logarithm of one plus the specified value.
Definition: log1p.hpp:39

stan::math::exp
Eigen::Matrix< T, Rows, Cols > exp(const Eigen::Matrix< T, Rows, Cols > &m)
Return the element-wise exponentiation of the matrix or vector.
Definition: exp.hpp:18

stan::agrad::exp
fvar< T > exp(const fvar< T > &x)
Definition: exp.hpp:16

stan::math::log1m_inv_logit
boost::math::tools::promote_args< T >::type log1m_inv_logit(const T u)
Returns the natural logarithm of 1 minus the inverse logit of the specified argument.
Definition: log1m_inv_logit.hpp:36