Exception handling in C enhances code robustness, readability, maintainability, and error propagation. Principles include: keeping exceptions safe, handling them promptly, handling them correctly and avoiding misuse. In practical cases, the try-catch block is used to catch exceptions where the divider is zero and take appropriate handling measures based on the exception type.
Exception handling in C technology: Benefits and principles of exception handling
Exception handling is an important function in C. It allows a program to continue running without interrupting when an abnormal event occurs. Abnormal events include various errors such as insufficient memory and file not found.
Benefits of exception handling
Principles of exception handling
Practical case
Consider the following code example:
#include <iostream> using namespace std; int main() { int x, y; cin >> x >> y; try { int result = x / y; cout << "Result: " << result << endl; } catch (domain_error& e) { cout << "Error: Division by zero" << endl; } catch (...) { cout << "Error: Unknown error" << endl; } return 0; }
In this example, we use try-catch
block to handle potential exceptions, i.e. division by zero. If this exception occurs, a domain_error
exception will be thrown and caught by the catch (domain_error& e)
block. If other types of exceptions occur, the catch (...)
block will catch and handle the exception.
By following the principles of exception handling and correctly applying try-catch
blocks, we can create robust and maintainable C programs that continue to run even when encountering exceptions.
The above is the detailed content of Exception handling in C++ technology: What are the benefits and principles of exception handling?. For more information, please follow other related articles on the PHP Chinese website!