1 #ifndef STAN_LANG_AST_FUN_IS_NIL_DEF_HPP 2 #define STAN_LANG_AST_FUN_IS_NIL_DEF_HPP 5 #include <boost/variant/apply_visitor.hpp> 12 return boost::apply_visitor(ino, e.
expr_);
Probability, optimization and sampling library.
bool is_nil(const expression &e)
Return true if the specified expression is nil.
Callback functor for determining if one of the variant types making up an expression is nil...