Contents
Why defensive programming is necessary?
Defensive programming is a form of defensive design intended to ensure the continuing function of a piece of software under unforeseen circumstances. Defensive programming practices are often used where high availability, safety, or security is needed.
Why defensive programming is the best way for robust coding?
If the structure that you pass has to change, you might have just broken a lot of code. Making your code robust — that is, defensive — ensures your software will have less bugs and less security holes. Trusting things to just work or for static operation will only lead to heartbreak.
How would you apply defensive coding practices?
No surprises.
- Replacing Logical Statements with Table Driven Methods. Let’s build better software with decision tables in place of if-else.
- Better Software Without If-Else. 5 Ways to Replace If-Else.
- Stop Using If-Else Statements. Write clean, maintainable code without if-else.
- Don’t Use Database Generated IDs.
When do you need to use defensive programming?
Defensive programming is a form of defensive design intended to ensure the continuing function of a piece of software under unforeseen circumstances. Defensive programming practices are often used where high availability, safety, or security is needed.
What are the risks of overly defensive programming?
Overly defensive programming, however, may safeguard against errors that will never be encountered, thus incurring run-time and maintenance costs. There is also the risk that the code traps or prevents too many exceptions, potentially resulting in unnoticed, incorrect results.
How are errors handled in a defensive program?
In this practice, only errors from outside the program’s control are to be handled (such as user input); the software itself, as well as data from within the program’s line of defense, are to be trusted in this methodology .
What is the difference between secure and defensive programming?
Secure programming. Secure programming is the subset of defensive programming concerned with computer security. That is to say, security is the concern, not necessarily safety or availability (the software may be allowed to fail in certain ways).