nested_size.hpp

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#ifndef STAN_MATH_REV_CORE_NESTED_SIZE_HPP
#define STAN_MATH_REV_CORE_NESTED_SIZE_HPP
 
#include <stan/math/rev/core/chainablestack.hpp>
#include <cstdlib>
 
namespace stan {
namespace math {
 
static inline size_t nested_size() {
  return ChainableStack::instance_->var_stack_.size()
         - ChainableStack::instance_->nested_var_stack_sizes_.back();
}
 
}  // namespace math
}  // namespace stan
#endif