Closes #12

core/dbc_parser.h

@@ -39,6 +39,8 @@ public:
      * @return Parsed database.
      * @throws std::runtime_error on file or parse errors.
      * Line parse errors include the file path and one-based line number.
+     * Duplicate normalized CAN IDs of the same frame type and duplicate signal
+     * names within a frame are rejected at the repeated definition's line.
      */
     DbcDatabase ParseFile(const std::string &filePath) const;