1 #ifndef STAN_MATH_REV_CORE_STD_ISINF_HPP
2 #define STAN_MATH_REV_CORE_STD_ISINF_HPP
int isinf(const stan::math::var &a)
Return 1 if the specified argument is positive infinity or negative infinity and 0 otherwise...
Independent (input) and dependent (output) variables for gradients.
int is_inf(const fvar< T > &x)
Returns 1 if the input's value is infinite and 0 otherwise.
double val() const
Return the value of this variable.