Automatic Differentiation
 
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size_zero.hpp
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1#ifndef STAN_MATH_PRIM_FUN_SIZE_ZERO_HPP
2#define STAN_MATH_PRIM_FUN_SIZE_ZERO_HPP
3
4#include <stan/math/prim/fun/size.hpp>
5#include <stan/math/prim/meta.hpp>
6#include <utility>
7
8namespace stan {
9namespace math {
10
18template <typename T>
19inline bool size_zero(const T& x) {
20 return !math::size(x);
21}
22
31template <typename T, typename... Ts>
32inline bool size_zero(const T& x, const Ts&... xs) {
33 return (size_zero(x) || size_zero(xs...));
34}
35} // namespace math
36} // namespace stan
37
38#endif
stan::math::size
size_t size(const T &m)
Returns the size (number of the elements) of a matrix_cl or var_value<matrix_cl<T>>.
Definition size.hpp:18
stan::math::size_zero
bool size_zero(const T &x)
Returns 1 if input is of length 0, returns 0 otherwise.
Definition size_zero.hpp:19
stan
The lgamma implementation in stan-math is based on either the reentrant safe lgamma_r implementation ...
Definition fvar.hpp:9