Linked Questions

20
votes
7answers
2k views

Should "else" be used in situations where control flow renders it redundant?

I sometimes stumble upon code similar to the following example (what this function does exactly is out of the scope of this question): function doSomething(value) { if (check1(value)) { return -...
20
votes
7answers
3k views

Should a function use premature returns or wrap everything in if clauses? [duplicate]

Possible Duplicate: Where did the notion of “one return only” come from? Which is better? I see pros and cons for both, so I can't really decide on which one to stick to. Wrap in if ...
2
votes
6answers
983 views

Stacking keywords on top of each other - poor style? [closed]

I have always wondered about this, especially in C/Java style languages. For example, consider the first 3 lines of this C# code: lock (serviceLock) using (var client = new ServiceClient()) try { ...
26
votes
5answers
2k views

Are there any scientifically rigorous studies of coding style principles? [closed]

Is a coding style principle - e.g. the single-exit principle - really a good thing? Always, or just sometimes? How much difference does it really make? Whatever your opinions, these are obviously ...
7
votes
5answers
1k views

Why are people coding "C-style C++"?

In discussions about whether to cast the result of malloc or not when coding C, one common argument is that if you cast the result then you can compile your C code with a C++ compiler. Why would one ...
3
votes
4answers
757 views

Alternative to nested-if on single return functions

I'd like to see if there has been any precedent on alternatives to nested-ifs--particularly for error-code returns. My workplace requires one return per function, so I cannot early exit. Here is some ...
2
votes
4answers
477 views

If a function contains only a switch, is it bad practise to replace the break; statements with return; statements?

Lets say I have a function that takes an argument, does some action based on the value of that argument and returns false if there is no action for that value. (pseudo-code): bool executeSomeAction(...
2
votes
4answers
228 views

function exit condition on parameter consistency check [duplicate]

When checking for parameter consistency a the top of a function body, what is the best strategy? This one: protected void function(Object parameter) if (parameter == null) return; ...
4
votes
2answers
188 views

Return type declaration and checks

I've been mainly programming PHP, and I recently started with C++. In PHP the return of a function can be of any type, so you can do checks like this: public function doSomething() { if (! this-&...
2
votes
2answers
11k views

Python - only one return per method? [duplicate]

I'm trying to sort out whether this is just a personal preference thing or whether it's actually bad practice to do this one way or another. I did try to reference PEP8 first, and I did not see an ...
1
vote
2answers
484 views

What is the cleanest way of writing a function with conditional statement with many returning options?

Maybe that's simple, but I'm a little confused. I have such a Ruby code: def my_function(found_objects) # ... if found_objects.second return CoreObjectFactory.get_object(found_objects.second,...
-1
votes
2answers
407 views

Single exit of function uses goto

Apropos of What kind of bugs do "goto" statements lead to? Are there any historically significant examples? I am not that learned in C, and to me the puzzle is that a single exit of a ...
4
votes
1answer
397 views

Should methods always return from one place? [duplicate]

Possible Duplicate: Where did the notion of “one return only” come from? I got into a little argument with a coworker about whether a method should be written like this: public Thing getThing(...
2
votes
1answer
774 views

What are the pros and cons of temporary variables vs multiple returns [duplicate]

Take the following examples: public static String returnOnce() { String resultString = null; if (someCondition) { resultString = "condition is true"; } else { resultString ...
1
vote
1answer
170 views

Which statements can be considered as exit points?

There are many discussions related to whether it is better to have only one or multiple exit points per function, but it is not clear to me which statements can be considered as exit points: only ...

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