The commonly used alternative to try / catch / throw is to return a return code (sometimes called an error code) that the caller explicitly tests via some conditional statement such as if. For example, printf(), scanf() and malloc() work this way: the caller is supposed to test the return value to see if the function succeeded.Although the return code technique is sometimes the most appropriate error handling technique, there are some nasty side effects to adding unnecessary if statements: Degrade quality: It is well known that conditional statements are approximately ten times more likely to contain errors than any other kind of statement. So all other things being equal, if you can eliminate conditionals / conditional statements from your code, you will likely have more robust code. Slow down time-to-market: Since conditional statements are branch points which are related to the number of test cases that are needed for white-box testing, unnecessary conditional statements increase the amount of time that needs to be devoted to testing. Basically if you don't exercise every branch point, there will be instructions in your code that will never have been executed under test conditions until they are seen by your users/customers. That's bad. Increase development cost: Bug finding, bug fixing, and testing are all increased by unnecessary control flow complexity.So compared to error reporting via return-codes and if, using try / catch / throw is likely to result in code that has fewer bugs, is less expensive to develop, and has faster time-to-market. Of course if your organization doesn't have any experiential knowledge of try / catch / throw, you might want to use it on a toy project first just to make sure you know what you're doing — you should always get used to a weapon on the firing range before you bring it to the front lines of a shooting war.
C++
Topic: Exceptions
What are some ways try / catch / throw can improve software quality?
Browse random answers:
What is Exceptions in c++ ?
Can we generate a C++ source code from the binary file?
what is Un handled exception(KERNEL32.DLL):0xE06D7363 in the context of exception handling? pls answer to my mail id.in the flg code i got a problem.i want to know the entire steps followed in exception handling in this program.#include <iostream>using namespace std;int main(){ cout << "Start"; try { // start a try block cout << "Inside try block"; cout << "Still inside try block"; throw 78; } catch (double i) { // catch an error cout << "Caught an exception -- value is: "; cout << i << ""; } cout << "End"; return 0;}
How does throwing and catching exceptions differ from using setjmp and longjmp?
what is the difference betwen wait() and delay()?
How can I get around scope problems in a try/catch?
Explain exception specifications with example ?
Explain about standard exceptions with example ?
Explain about try, catch, and throw Statements (C++) ?
Exceptions are hard to ignore, unlike error codes. ?
What are C++ Exception Examples ?
Explain about Unhandled C++ Exceptions ?
Explain about exception Handling Overhead ?
Explain about Mixing C (Structured) and C++ Exceptions ?
Explain about Overview of C++ Exception Handling with example ?
Explain about Implications of Using Exceptions with example ?
Explain about Designing With Exceptions with example ?
Explain about exceptions in Real-Time Systems ?
Explain about exception Handling Philosophies with example ?
Explain about exceptions in an Array-Based Stack ?
How many exceptions in a List-Based Stack ?
What are some ways try / catch / throw can improve software quality?
How do exceptions simplify my function return type and parameter types?
What does it mean that exceptions separate the "good path" (or "happy path") from the "bad path"?
Exception handling seems to make my life more difficult; clearly I'm not the problem, am I??
How can I handle a destructor that fails?
How can I handle a constructor that fails?
How should I handle resources if my constructors may throw exceptions?
What is exception-safe code?
Explain about exception Neutrality ?
Explain how we implement exception handling in C++
Explain terminate() and unexpected() function ?
Exception handling concept ?
Describe the way to handle run time error in C++.
