check_consistent_size.hpp

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#ifndef STAN_MATH_PRIM_ERR_CHECK_CONSISTENT_SIZE_HPP
#define STAN_MATH_PRIM_ERR_CHECK_CONSISTENT_SIZE_HPP
 
#include <stan/math/prim/meta.hpp>
#include <stan/math/prim/err/invalid_argument.hpp>
#include <stan/math/prim/fun/size.hpp>
#include <sstream>
#include <string>
 
namespace stan {
namespace math {
 
template <typename T>
inline void check_consistent_size(const char* function, const char* name,
                                  const T& x, size_t expected_size) {
  if (!(!is_vector<T>::value
        || (is_vector<T>::value && expected_size == stan::math::size(x)))) {
    [&]() STAN_COLD_PATH {
      std::stringstream msg;
      msg << ", expecting dimension = " << expected_size
          << "; a function was called with arguments of different "
          << "scalar, array, vector, or matrix types, and they were not "
          << "consistently sized;  all arguments must be scalars or "
          << "multidimensional values of the same shape.";
      std::string msg_str(msg.str());
 
      invalid_argument(function, name, stan::math::size(x),
                       "has dimension = ", msg_str.c_str());
    }();
  }
}
 
}  // namespace math
}  // namespace stan
#endif