1 #ifndef STAN_MATH_PRIM_SCAL_FUN_SIZE_ZERO_HPP 2 #define STAN_MATH_PRIM_SCAL_FUN_SIZE_ZERO_HPP 30 template <
typename T,
typename... Ts>
size_t length(const std::vector< T > &x)
Returns the length of the provided std::vector.
bool size_zero(T &x)
Returns 1 if input is of length 0, returns 0 otherwise.