The switch-statement tag has no wiki summary.
11
votes
5answers
507 views
Map of functions vs switch statement
I'm working on a project that processes requests, and there are two components to the request: the command and the parameters. The handler for each command is very simple (< 10 lines, often < ...
2
votes
3answers
432 views
Checking “instanceof” rather than value using a switch statement
Is there some syntax (other than a series of if statements) that allows for the use of a switch statement in Java to check if an object is an instanceof a class? I.e., something like this:
switch ...
4
votes
2answers
324 views
Is it possible to avoid enormously big switch in that case? [duplicate]
I'm writing a simple chess-related code with intention to write it clearly (performance doesn't matter at all). And this method I have doesn't look clean to me at all:
public static Piece ...
30
votes
8answers
2k views
Is it necessary to add the default case while using switch cases?
During a recent code review I was asked to put default cases in all the files wherever switch block is used, even if there is nothing to do in default. That means I have to put the default case and ...
13
votes
7answers
1k views
Why does Clang/LLVM warn me about using default in a switch statement where all enumerated cases are covered?
Consider the following enum and switch statement:
typedef enum {
MaskValueUno,
MaskValueDos
} testingMask;
void myFunction(testingMask theMask) {
switch theMask {
case ...
0
votes
2answers
314 views
Why is there never any controversy regarding the switch statement? [closed]
We all know that the gotostatement should only be used on very rare occasions if at all. It has been discouraged to use the goto statement countless places countless times. But why it there never ...
9
votes
5answers
697 views
If-Else V.S. Switch end of flow
I was wondering the if if-else statements, is like a switch statement that does have a break statement.
if( boolean_expression_1 )
statement_1
else if( boolean_expression_2 )
statement_2
else ...
11
votes
2answers
496 views
Why don't languages use explicit fall-through on switch statements?
I was reading Why do we have to use break in switch?, and it led me to wonder why implicit fall-through is allowed in some languages (such as PHP and JavaScript), while there is no support (AFAIK) for ...
7
votes
4answers
1k views
How is a switch statement better than a series of if statements? [duplicate]
Possible Duplicate:
Should I use switch statements or long if…else chains?
I'm working on a small program that will conduct an Insertion Sort. A number will be inputted through the ...
3
votes
3answers
388 views
Is case after case in a switch efficient?
Just a random question regarding switch case efficiency in case after case; is the following code (assume pseudo code):
function bool isValid(String myString){
switch(myString){
case "stringA":
...
12
votes
6answers
2k views
Refactoring Switch Statements and is there any real use for Switch Statements at all?
I was reading this article and was wondering, do we get rid of all switch statements by replacing them with a Dictionary or a Factory so that there are no switch statements at all in my projects.
...
4
votes
2answers
199 views
Good ways to jump to a particular state in a yielding stateful function?
I'm working on some embedded code using C. Various pieces of functionality need non-blocking stateful functions, which are mostly implemented using a switch on various states. For example, a modem ...
8
votes
6answers
728 views
Appropriate uses of fall-through switch statements
When is it appropriate to use a fall-through (classic) switch statement? Is such usage recommended and encouraged or should it be avoided at all costs?
6
votes
2answers
357 views
Patterns to avoid long switch block in UI?
Sometimes you have many entities which have common parts, but also should be addressed uniquely in UI. For example, in a CMS, you have many content types (like news, images, articles, pages, etc.) ...
2
votes
2answers
257 views
How is switch/case handled as to avoid comparisons to the case values?
I've read in multiple answers that switch/case avoids "unnecessary" comparisons, but I never learned this in college, and I'm a little stumped on how the program would figure out which case to jump to ...
22
votes
13answers
4k views
Why use an OO approach instead of a giant “switch” statement?
I am working in a .Net, C# shop and I have a coworker that keeps insisting that we should use giant Switch statements in our code with lots of "Cases" rather than more object oriented approaches. His ...
10
votes
10answers
3k views
Should I use switch statements or long if…else chains?
Often when I hear about the switch statement, its put off as a way to replace long if...else chains. But it seems that when I use the switch statement I'm writing more code that I would be just ...
