Questions tagged [switch-statement]
In computer programming, a switch, case, select or inspect statement is a type of selection control mechanism used to invoke specific blocks of code based on variable contents.
switch-statement
11,802
questions
1
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views
_Generic Statement For An Enumerator (Enum)?
I frequently have to deal with the functionality of enums in C. However, there doesn't seem to be an easy & equally efficient way of supplying a different result based off of a predefined enum ...
- 96
-1
votes
1
answer
60
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Write a method that takes 3 integer as parameters, return true if they are equal, return false otherwise without using if statement [closed]
I am trying to write a method that compares three integers without using the if statement. I tried the switch statement, but it wouldn't work. Eclipse shows case expressions must be constants.
Here is ...
- 3
0
votes
2
answers
40
views
Utilizing array items as an entire case in a switch statement
I would like to generate cases in a switch statement from an array. Here is how the array is generated:
pointObjects = [];
for (var i = 0; i < 2; i++) {
// Generate cases.
var url;
var ...
-3
votes
2
answers
67
views
How can I use a modified String in a C# switch → case statement?
I have a string I need to use, a variant of, in many places throughout my application. For example:
String myString = "The Quick Brown Fox";
string someLowerCaseString = myString.ToLower();
...
- 1,909
0
votes
0
answers
11
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On R Identify when a qualitative variable changes from one value to another
On the x-axis I have dates and for each date I have a qualitative variable (colour). I would like to create on R a new df with the date on which my variable changes (e.g. the date from which I turn ...
0
votes
0
answers
7
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QtCreator: missing shortcut for switching between widgets
For example (in QtCreator) using Ctrl-F to find a piece of text in the opened file – the focus switches from files to search box, I enter the searched text, I enter ENTER, and if existent, the file ...
- 111
0
votes
1
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50
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Switch expression vs switch statement which one to use [closed]
Java 14 standardized switch expression and since Java 17 they have enhanced the switch expression to include pattern matching.
Is there any guideline to when one should be using switch statement vs ...
- 31
1
vote
1
answer
39
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Why those two switch blocks are not equivalent?
enum Foo {
bar,
baz,
}
By just simply looking at this code, I thought it would print bar, baz and then barr, bazz
void main() {
final f = Foo.bar;
switch (f) {
case Foo.bar:
case Foo....
- 19.4k
0
votes
0
answers
30
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Trouble Testing Error Handling in Next.js Component with TypeScript and Vitest
Environment:
"next": "14.2.3",
"vitest": "1.6.0",
"@testing-library/jest-dom": "6.4.5",
I'm trying to write tests for a Next.js component ...
- 109
2
votes
1
answer
99
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Is There a Pragmatic Solution to Remove Enum Switches?
The title of this question is a little strange-sounding, but I could think of no better way to word it. My problem is this; I have a type inside a project called AmbiguousType, which is a union in ...
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1
answer
40
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Is there a tool or specific syntax to insert cases into switches with consecutive indices and make the indices below adjust
I have a function that takes an integer and returns a string that is picked by a switch. The strings are part of a coherent text and I want to be able to add cases to the switch whenever I want to ...
- 145
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1
answer
47
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Is there a reason an execute pipeline cannot work in a switch activity?
I have a pipeline that has a switch activity - Quite simply, one of the paths is to run an execute pipeline.
I know the path works if I put a Wait in there only but if I put an execute pipeline, the ...
0
votes
1
answer
69
views
Which is better in this scenario - if else loop or case in shell scripting?
I am trying to write a shell script which has a part where I have to use some kind of loop to execute some commands if condition satisfy.
I want to understand what is the best way to approach this ...
- 15
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votes
1
answer
96
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Should switch-statement in C++ be used for checking user character input
I am following C++ Programming language book and came upon code similar to one below:
bool acceptSwitchWithRetry()
{
int tries = 0;
while (tries < 4) {
cout << "Do you ...
- 33
0
votes
1
answer
35
views
What is the best way to have different entry points for a list of iterative commands?
I have a list of iterative Python commands:
def command_list(start_at):
step1
step2
step3
# ...
stepN
Now I want to start_at different steps in this list of commands and then ...
- 31
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votes
0
answers
9
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Data corruption problem of using VirtioBlk driver in custom operating system on RISC-V
During the kernel initialization phase, I am able to read data correctly from the boot sector using the VirtioBlk driver. The data read at this stage is as expected.
However, after the kernel performs ...
0
votes
0
answers
10
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PHP, 2 different interpretations for the same evaluation using if and switch case [duplicate]
in the following code, does anyone know why is the $val === 0 case never running when there's a zero in the $arr array?
<?php
function plusMinus($arr) {
$positiveCount = $zeroCount = $...
- 35
0
votes
0
answers
50
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Connecting to a Cisco Switch Using LDAP Authentication via FreeRADIUS
I have a problem with my FreeRADIUS server. I would like to connect to my Cisco switches using LDAP authentication from my FreeRADIUS server, but only for people who are part of a specific group. I ...
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-1
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1
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120
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The implementation of a switch-statement in ARM assembly seems too minimal
I was learning about how switch-statements work under the hood in C, so I decided to look at the compiled code. From what I understand, C uses a jump table to implement switch-statements. However, I ...
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1
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63
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Immediate break after input using switch or if
I am learning C right now and im at the very beginning.
Here's my code:
#include <stdio.h>
int main (){
char operator;
double num1;
double num2;
double result;
printf("\n Enter an ...
1
vote
2
answers
57
views
How can i make my code rerun after Ending?
switch(choice) {
case 1:
double sum = 0;
for (int i = 1; i <= 5; i++) {
System.out.println("Enter " + i + "th number: ...
- 21
0
votes
1
answer
34
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Crystal Report If formula with multiple conditions
I'm getting an error message with this formula but can't see the wood for the trees of what's missing - please help!
if {vehinv_rec.master_class_2} = "RCV" and if {vehinv_rec.chassis_model} ...
1
vote
2
answers
63
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How to skip vars_prompt if variables exist within import_playbook?
I have this playbook script to execute some basic task on the switch and firewall.
Requirement :
Case 1. User need to execute the parent script to perform all basic
task on child 1 and child 2.
Case ...
-1
votes
2
answers
86
views
What should I do if ifstream does not work in the switch case?
In the code snippet below, I'm calling 2 different files. The first time everything works and the text is extracted from the file correctly, but when the second file is called from within the switch ...
- 1
0
votes
0
answers
47
views
Why is the switch not returning the information from a different method?
I am trying to change my coding so that the switch function can be placed in a different method but be used by the first method.
Here is the code for context:
static void Main(string[] args)
{
...
0
votes
1
answer
17
views
Crystal reports highlighting
I have a field in a Crystal Report that I want to highlight based on multiple Criteria.
I cannot figure out a way to get a switch and/or if statement to work for me.
This is for a productivity report. ...
- 49
0
votes
1
answer
18
views
Adding dates to a DAX sumx/switch/filter query
I have inherited an existing DAX statement in a power BI report which calculates fees based on sources and products;
Fee= SUMX(
FILTER(
'Accounts',
AND(
RELATED('...
- 1
2
votes
5
answers
175
views
Skipping a case statement in a switch [closed]
I have a switch statement that I specially need the cases to fall through. But have also a condition which is a bit of an edge case where I need to skip a case. I've made it a simple visualization ...
- 1,014
1
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1
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53
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Type guarding class in switch statement
I haven't use Typescript in many years and can't remember nor find how to type guard many classes inside a switch statement correctly.
class A {}
class B {}
class C {}
type OneOfThem = A | B | C;
...
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votes
1
answer
59
views
Choosing Named Range via formula
So I have this formula:
At a high level, the formula goes like this:
If [Dynamic Array #1] = False, 0,
Index(
If [Dynamic Array #2] = 1, Named Range A, Named Range B <-- Problem ...
- 1,332
0
votes
2
answers
55
views
How to reuse switch block labels without goto?
How to implement the following code without goto and unnecessary code complexity?
namespace Test
{
static class Program
{
bool keyA = false;
bool keyB = false;
// ...
...
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0
votes
2
answers
88
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bash case glob in order to match part of hostname and ignore last characters
we tested the following script - script.sh on machine hostname - presto-data1-01 , but seems the regex presto-data+([[:digit:]]) isn't good enough
machines hosts are as example:
presto-data1-01
presto-...
- 2,550
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1
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36
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How can I populate a column with same values which is there in that column
I have the following table:
The flat_id column will only contain 2 distinct values i.e. 'ABC123' and 'NA'. I need to create a new column new_flat_id which will contain the 'ABC123' values in all rows ...
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1
vote
3
answers
57
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doing operations for else-if "groups"
I had a pattern like this and didn't know a good way to handle it
let i = Math.floor(5 * Math.random())
if (i == 0) {
console.log('a')
console.log('+')
}
else if (i == 1) {
console....
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votes
0
answers
23
views
Why can't I ping the remote pox controller on port 6633 or port 6533 from mininet?
Please help me troubleshoot my painpoint. I have mininet image running on a VM installed on Virtualbox that comes preinstalled with pox(ie the mininet vm image) and I have tried to run a simple ...
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-1
votes
1
answer
44
views
Serial port from Arduino to PC noise
I am trying to connect a on-off switch to an Arduino board, then connect the Arduino board to my PC through the serial port with the baud rate of 9600. The idea is that when the switch is off, a ...
0
votes
0
answers
79
views
Switch-statements: void_func(); break; vs return void_func();
I noticed that in the case of calling one void function inside a case inside a void function, the word break can be replaced with the return of the called function, if the common function contains ...
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1
vote
0
answers
61
views
Differences in Compilation Results Between GCC and Clang
I encountered a situation where my C code compiles successfully with GCC but generates errors when compiled with Clang.
Here is my C code:
#include <stdio.h>
#include <stdlib.h>
#include &...
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-3
votes
1
answer
83
views
Can you define a variable in ranges in java [closed]
When using variables can you define or specify that variable as all the numbers within a range like 1-10? I am using Switch statements and want to assign one of the case variables all the variables ...
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1
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Java Calculator Not Working - Need Help Troubleshooting ( Computer Science Beginner ) [closed]
I've written a simple calculator in Java that takes user input for two numbers and an operator. It's supposed to perform the corresponding mathematical operation and output the result. However, my ...
0
votes
2
answers
42
views
Create almost similar classes based on conditions, without too much repetion of code
I have three cases say: Case1, Case2, Case3:
I have to define three classes depending on which case is true. All the classes have almost the same methods except for some pre-processing depending on ...
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votes
1
answer
49
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Calculation of income tax owed is not working correctly
this program will calculate your tax bracket by the entering your income and your marital status, s for single and m for married.
The program will prompt you to enter income, then marital status. ...
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votes
1
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15
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this code cant really get it to work tried combining two separate codes into one but I am coming into trouble
need help with my code my switch statement doesn't work I've tried to change it from int to string but cant figure it out. The line I have trouble with is line 43 that one is the switch statement ...
-1
votes
2
answers
62
views
How do I have Access automatically display what type of device something is, based on what's input in another field on the same table?
I'm currently working on building a radio inventory database for a charity I work with. I have a table called "Radio Info" where I am putting in the info about the individual radios and ...
- 157
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votes
2
answers
75
views
How to execute multiple other cases inside of a case
So it is possible to fall-through the case to another case:
switch(variable) {
case 1:
// do something 1
case 2:
// do something 2
break;
case 3:
// do something 3
break;
}
...
- 39
1
vote
1
answer
44
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Switch executes default even with break in every case
So i'm trying to break out of the switch and while statements using the break in every case, yet even using the break statement my program keeps executing the default after the specific case code is ...
- 15
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0
answers
35
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How can I switch to pop up facebook sign up page in Selenium?
I am not able to switch to pop up facebook sign up page using selenium.Tried switch to method but still not working.
FB Signup page
Tried below code
public void createNewAccount() {
driver....
- 1
0
votes
1
answer
87
views
Can you break out of a switch case from within a loop?
I have a list of objects that I don't want to contain duplicates. Since the objects are expensive to create, I don't want to use a set, as that requires an object to be created first, before ...
- 845
2
votes
2
answers
127
views
Runtime cast of void pointer
I'm writing a C program that applies a different type of quantization to an array depending on an environmental variable.
The problem is that, I need to use the same function void foo(void* ptr, ...
1
vote
1
answer
148
views
Using bash case statement in gitlab ci/cd to set variables
I'm trying to create a pipeline and set some variables from gitlab based of the git branch, in my case staging, master and everything else branch:
---
stages:
- deploy
- pre
- pro
....
- 41