distance.hpp

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#ifndef STAN_MATH_OPENCL_PRIM_DISTANCE_HPP
#define STAN_MATH_OPENCL_PRIM_DISTANCE_HPP
#ifdef STAN_OPENCL
 
#include <stan/math/opencl/matrix_cl.hpp>
#include <stan/math/opencl/err.hpp>
#include <stan/math/opencl/kernel_generator.hpp>
#include <stan/math/opencl/prim/squared_distance.hpp>
#include <stan/math/opencl/scalar_type.hpp>
#include <stan/math/prim/fun/Eigen.hpp>
#include <stan/math/prim/fun/sqrt.hpp>
#include <stan/math/prim/meta.hpp>
#include <algorithm>
 
namespace stan {
namespace math {
 
template <
    typename T_a, typename T_b,
    require_all_nonscalar_prim_or_rev_kernel_expression_t<T_a, T_b>* = nullptr>
inline auto distance(const T_a& a, const T_b& b) {
  const char* function = "distance (OpenCL)";
  check_vector(function, "a", a);
  check_vector(function, "b", b);
  return sqrt(squared_distance(a, b));
}
 
}  // namespace math
}  // namespace stan
#endif
#endif