C++ Coding Standards: Throw by Value, Catch by Reference

This chapter is from the book

C++ Coding Standards: 101 Rules, Guidelines, and Best Practices

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This chapter is from the book

This chapter is from the book 

C++ Coding Standards: 101 Rules, Guidelines, and Best Practices

Learn More Buy

Examples

Example: Rethrowing a modified exception. Prefer to rethrow using throw; :

catch( MyException& e ) {                   // catch by reference to non-const
 e.AppendContext("Passed through here");    // modify
 
   throw;                                     
   // rethrow modified object
}