Basics
C++ Errors
Handling C++ Errors
C++ errors use try-catch with exception classes.
Introduction to C++ Errors
Errors in C++ are typically handled using a mechanism known as exception handling. This involves using try, catch, and optionally throw statements to manage errors gracefully. Exception handling allows a program to continue executing even after an error has occurred, by providing a way to catch and process the error.
Using Try-Catch in C++
The try block contains code that may potentially cause an error. If an error occurs, an exception is thrown and caught by the catch block. The syntax is as follows:
Example: Handling Division by Zero
Let's look at an example where we handle a division by zero error using a try-catch block.
Exception Classes in C++
C++ provides several standard exception classes to handle different types of errors. These are defined in the <stdexcept> header file and include:
std::exception: Base class for all standard C++ exceptions.std::runtime_error: Represents errors detected during runtime.std::logic_error: Represents errors in the program's logic.
You can also define your own exception classes by inheriting from the standard exception classes.
Creating Custom Exception Classes
Custom exception classes allow you to define error types specific to your application. Here's a simple example:
Conclusion
Handling errors in C++ using try-catch blocks and exception classes is an essential skill for robust and resilient software development. By understanding and implementing exception handling, you can ensure that your programs can manage unexpected situations gracefully.
