check_consistent_size.hpp

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#ifndef __STAN__MATH__ERROR_HANDLING__CHECK_CONSISTENT_SIZE_HPP__
#define __STAN__MATH__ERROR_HANDLING__CHECK_CONSISTENT_SIZE_HPP__

#include <stan/math/error_handling/dom_err.hpp>
#include <stan/meta/traits.hpp>

namespace stan {
  namespace math {

    template <typename T, typename T_result, class Policy>
    inline bool check_consistent_size(size_t max_size,
                                      const char* function,
                                      const T& x,
                                      const char* name,
                                      T_result* result,
                                      const Policy&) {
      size_t x_size = stan::size_of(x);
      if (is_vector<T>::value && x_size == max_size)
        return true;
      if (!is_vector<T>::value && x_size == 1)
        return true;
      return dom_err(
                     function,x_size,name,
                     " (max size) is %1%, but must be consistent, 1 or max=",max_size,
                     result,Policy());
    }

  }
}
#endif