rep_row_vector.hpp

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#ifndef STAN_MATH_PRIM_FUN_REP_ROW_VECTOR_HPP
#define STAN_MATH_PRIM_FUN_REP_ROW_VECTOR_HPP
 
#include <stan/math/prim/fun/Eigen.hpp>
#include <stan/math/prim/err.hpp>
 
namespace stan {
namespace math {
 
template <typename T_ret, typename T,
          require_eigen_row_vector_t<T_ret>* = nullptr,
          require_stan_scalar_t<T>* = nullptr>
inline auto rep_row_vector(const T& x, int n) {
  check_nonnegative("rep_vector", "n", n);
  return T_ret::Constant(n, x);
}
template <typename T, require_stan_scalar_t<T>* = nullptr>
inline auto rep_row_vector(const T& x, int n) {
  return rep_row_vector<Eigen::Matrix<return_type_t<T>, 1, Eigen::Dynamic>>(x,
                                                                            n);
}
 
}  // namespace math
}  // namespace stan
 
#endif