Jumping

C++ supports jumps, and in most cases, there are better ways to branch code; however, for completeness, we will cover the mechanism here. There are two parts to a jump: a labeled statement to jump to and the goto statement. A label has the same naming rules as a variable; it is declared suffixed with a colon, and it must be before a statement. The goto statement is called using the label's name:

    int main() 
    { 
        for (int i = 0; i < 10; ++i) 
        { 
            std::cout << i << std::endl; 
            if (i == 5) goto end; 
        } 

    end:
        std::cout << "end"; 
    }

The label must be in the same function as the calling goto.

Jumps are rarely used, because they encourage you to write non-structured code. However, if you have a routine with highly nested loops or if statements, it may make more sense and be more readable to use a goto to jump to clean up code.