Syntax:

    try {
    statement list;
    }
    catch( typeA arg ) {
    statement list;
    }
    catch( typeB arg ) {
    statement list;
    }
    ...
    catch( typeN arg ) {
    statement list;
    }

The throw statement is part of the C++ mechanism for exception handling. This statement, together with the try and catch statements, the C++ exception handling system gives programmers an elegant mechanism for error recovery. You will generally use a try block to execute potentially error-prone code. Somewhere in this code, a throw statement can be executed, which will cause execution to jump out of the try block and into one of the catch blocks. For example:

     try {
       cout << "Before throwing exception" << endl;
       throw 42;
       cout << "Shouldn't ever see this" << endl;
     }
     catch( int error ) {
       cout << "Error: caught exception " << error << endl;
     }

Related Topics: catch, try