Function toString

gpu.hpp:223–235

* @brief Converts NumType to string. */

 * @brief Converts NumType to string.
 */
inline std::string toString(NumType type) {
  switch (type) {
  case kf16:
    return "f16";
  case kf32:
    return "f32";
  case ki32:
    return "i32";
  default:
    LOG(kDefLog, kError, "Invalid NumType in string conversion.");
    return "unknown";
  }
}

/**
 * @brief Converts Shape to string. The string formatting is meant to be