Parameters are important for any non trivial program, to help make it generic and data driven. Parameters are usually function arguments but can also be part of the configuration.

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3answers
82 views

Setting global parameters: is this a reasonable use of const_cast and volatile?

I have a program that I run repeatedly with various parameter sets. Different parameters are used in different parts of the program (including different source files). The same parameter may also be ...
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1answer
81 views

Constructors, Ignore Arguments

Is it possible to have a constructor in a class, that you can ignore certain arguments/parameters? For example, I have this constructor Car(color, make, model, wheels, type, doors) Could I call ...
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9answers
3k views

How to name a method that both performs a task and returns a boolean as a status?

If there is a method bool DoStuff() { try { // doing stuff... return true; } catch (SomeSpecificException ex) { return false; } } should it rather be called ...
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1answer
93 views

Should I omit the parameter “e” when using EventHandler<EventArgs>?

Whenever I am defining my own events, I use a pattern such as the following (which I believe is how the MSDN recommends doing it): public class MyEventClass { private bool _value; // Backing ...
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2answers
214 views

Design Pattern: Algorithm varies according to the input arguments

I will give a simple example to help you understand my question. Suppose we have a rectangle and a Utility class with a method that creates a buffer arround a shape. The .createBuffer method has ...
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6answers
225 views

What is the coding standard for a long parameter list? [closed]

I am trying to code a constructor and the class needs a few variables to get it running. This method creates a log file containing a subset of a source file's entries based on a key and possible ...
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1answer
312 views

How to encapsulate method parameters in Java?

An HTTP query can be parametrized to a list of pairs like name=value that can be encapsulated in general as Map<String, String> since an HTTP GET query is string pairs. I could need something ...
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0answers
16 views

Common practice to transfer named parameters in Tcl

Using Tcl8.5, what is the common practice to transfer named variables to a proc/method? Something that will be similar to defining the class members when instantiating a class object [incr Tcl]. ...
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2answers
219 views

How to deliver 3 different parameters to class in one method (2 of 3 are optional)

I need your help how to implement it nice and well. It's quite a simple problem. I can solve it but I need help on how to do that better. My class has logic working using three parameters. It gets ...
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2answers
121 views

Inform caller or just let them deal with exception?

I'm not sure how to proceed in the following situation. say we have a function as so: def runsATask(codes): myDicts = [helperFunc(code) for code in codes] for item in myDicts: # some ...
16
votes
3answers
598 views

Why not annotate function parameters?

To make this question answerable, let's assume that the cost of ambiguity in the mind of a programmer is much more expensive then a few extra keystrokes. Given that, why would I allow my teammates to ...
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4answers
123 views

Understanding parameters

I have read this statement: "A parameter is used as a sort of temporary messenger, carrying data originating from outside the constructor or method and making it available inside it." So, does that ...
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3answers
565 views

Is it better to have constructors with or without parameters?

Is it better to have constructors with or without parameters and why? public NewClass( String a, String b, int c) throws IOException { //something } OR public NewClass() { //something } ...
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2answers
1k views

Ruby - when to use instance variables vs parameters between methods?

I'm writing several methods that call other methods. To pass the information I have a couple of choices: Pass the information as parameters Set instance variables so that other methods can access ...
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5answers
2k views

Multiple arguments in function call vs single array

I have a function that takes in a set of parameters, then applies to them as conditions to an SQL query. However, while I favored a single argument array containing the conditions themselves: ...
2
votes
1answer
245 views

Best practices for refactoring parameter file structure in multiple environments

Background info and what I've tried Within each of two mostly distinct environments, say 'Research' and 'Production', there is a need for a structured parameter file. The file contains things like ...
4
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6answers
310 views

Fields vs method arguments [closed]

I just started writing some new class and it occurred to me that I was adding a lot of method arguments that are not strictly needed. This is following a habit to avoid having state in classes that is ...
0
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2answers
142 views

Factory for arrays of objects in python

Ok, the title might be a little misleading. I have a Window class that draws widgets inside itself in the constructor. The widgets are all of the same type. So I pass a list of dictionaries, which ...
4
votes
8answers
680 views

Passing an object into a method which changes the object, is it a common (anti-) pattern?

I am reading about common code smells in Martin Fowler's Refactoring book. In that context, I was wondering about a pattern I am seeing in a code base, and wether one could objectively consider it an ...
0
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2answers
529 views

UML representation of type being passed as a parameter

I want to draw a UML diagram of my program. Class Barney has a method Yabadaba(Doo d) which takes a parameter of type Doo. How do I represent that class Doo is used in class Barney in my UML diagram? ...
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1answer
115 views

Overloading to support multiple related types (especially pointers)

Problem I was just trying to debug a set of file-manipulation routines I wrote for a program I am working on. One of them kept returning an INVALID_HANDLE error. Explanation I figured out what the ...
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1answer
152 views

Generic params table design

We have a generic parameter table whose important attributes are : id number auto increment not null domain varchar (200) not null classification varchar (200) not null param_name varchar (200) not ...