How to Fix: Difference: std::runtime_error vs std::exception()
Understanding the difference between std::runtime_error and std::exception in C++.
📋 Table of Contents
The C++ Standard Library provides two classes, std::runtime_error and std::exception, to handle runtime errors. While they are both used for error handling, they differ in their purpose and usage.
🛑 Root Causes of the Error
- Runtime errors are typically caused by invalid or unhandled input, unexpected conditions, or programming logic flaws.
🔧 Proven Troubleshooting Steps
Method 1: Throwing a std::runtime_error
- Step 1: Use the
throwkeyword to create an instance ofstd::runtime_error, passing a descriptive error message.
Method 2: Catching std::exception
- Step 1: Wrap your error handling code in a
try-catchblock.
✨ Wrapping Up
To summarize, use std::runtime_error when you need to indicate a specific error condition that occurs during runtime execution. On the other hand, use std::exception as a base class for all exceptions, including std::runtime_error, to provide a more general way of handling errors.
❓ Frequently Asked Questions
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