1#ifndef STAN_MATH_PRIM_FUN_IS_INF_HPP
2#define STAN_MATH_PRIM_FUN_IS_INF_HPP
int is_inf(const fvar< T > &x)
Returns 1 if the input's value is infinite and 0 otherwise.
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
bool isinf(const stan::math::var &a)
Return 1 if the specified argument is positive infinity or negative infinity and 0 otherwise.