throw exception c++

In C++, you can use the "throw" keyword to raise an exception. When an exception is thrown, the program's normal flow is interrupted, and the control is transferred to the nearest catch block.

Here's how it works:

1. Identify the point in your code where an exceptional condition occurs.
2. Use the "throw" keyword followed by an expression that represents the exception you want to throw.
3. The exception is then "thrown" and the program looks for a matching catch block to handle it.
4. If a matching catch block is found, the program enters the catch block and executes the code inside it.
5. If no matching catch block is found, the program will terminate with an "unhandled exception" error.

That's a brief overview of how to use the "throw" keyword in C++ to raise exceptions.