Questions tagged [out-parameters]
6 questions
32
votes
9 answers
Is there a better way to use C# dictionaries than TryGetValue?
I find myself often looking up questions online, and many solutions include dictionaries. However, whenever I try to implement them, I get this horrible reek in my code. For example every time I want to use a value:
int x;
if…
Adam B
- 1,506
- 2
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15
votes
3 answers
non-optional pointers vs. non-const references in C++
In Other C++ Features, Reference Arguments of the Google C++ Style Guide, I read that non-const references must not be used.
All parameters passed by reference must be labeled const.
It is clear that looking at function calls that use references…
Wolf
- 630
- 1
- 6
- 24
8
votes
4 answers
Function that modifies an argument, should I return the modified object?
We have a function that modifies a JS object, by adding some custom properties to it. The function doesn't return antyhing
addTransaction: function (obj) {
obj.transactionId = this.getTransactionId;
obj.id = this.recordId;
},
Somebody…
Ruan Mendes
- 806
- 2
- 8
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6
votes
4 answers
Is using "out" or "ref" parameters in Java methods to return extra values bad?
I happened to create a mutable class like this:
class Mutable {
private T value;
public Mutable() { this.value = null; }
public Mutable(T value) { this.value = value; }
T get() { return this.value; }
void set(T value) {…
hyde
- 3,744
- 4
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3
votes
2 answers
Should a method modifying object passed as a parameter return the modified object?
I have some incoming request - it's an instance of class generated from api specification - POJO with public getters/setters.
I would like to normalize some values. For example dimensions (to use metric system).
I have a service class which has…
Shaolin
- 33
- 5
0
votes
5 answers
Named output parameters vs return values
Which code is better:
// C++
void handle_message(...some input parameters..., bool& wasHandled)
void set_some_value(int newValue, int* oldValue = nullptr)
// C#
void handle_message(...some input parameters..., out bool wasHandled)
void…
Abyx
- 1,439
- 4
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