size.hpp

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#ifndef STAN_MATH_OPENCL_PRIM_SIZE_HPP
#define STAN_MATH_OPENCL_PRIM_SIZE_HPP
#ifdef STAN_OPENCL
 
#include <stan/math/prim/meta.hpp>
 
namespace stan {
namespace math {
 
template <typename T,
          require_nonscalar_prim_or_rev_kernel_expression_t<T>* = nullptr>
size_t size(const T& m) {
  return m.rows() * m.cols();
}
 
}  // namespace math
}  // namespace stan
 
#endif
#endif