Unreachable code is part of the source code of a program which can never be executed because there exists no control flow path to the code from the rest of the program.
Questions tagged [unreachable-code]
181 questions
1
vote
3 answers
break; line unreachable
String userAge;
while(true){
System.out.println("Enter user Age");
userAge = scInput.nextLine();
if(tryParseInt(userAge)){
return userInfo[row][1] = userAge;
break;
}else{
…
Reagan B
- 23
- 2
1
vote
1 answer
Is it the only case a reachable goto pointing to an unreachable label?
Inspired from question
What is a non-reachable end point(unreachable endpoint) of a statement?
And before I ask this question, I've read:
C# Puzzle : Reachable goto pointing to an unreachable label
Why does this "finally" execute?
The challenge…
Ken Kin
- 4,503
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- 76
0
votes
5 answers
Unreachable Code Detected Warning
Alright, so I've been trying to fix this for a good while now. I have a "warning" within my code - "Unreachable Code Detected". I'm not sure how to fix this, which is why I'm posting here. Below is the code:
public static byte…
Donavon Decker
- 39
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- 3
0
votes
4 answers
Why is this code giving an "Unreachable Statement" error?
This is my code and im getting an unreachable statement error on it but i do not know why.
public boolean Boardload(String[] args) throws Exception
{
Robot robot = new Robot();
Color color3 = new Color(114, 46, 33);
Color color4 = new…
user1179522
- 145
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- 8
0
votes
1 answer
Code is unreachable but I have no return function
This is my first post so I am sorry if I make any mistakes writing this. So I'm making a calculator program as my first personal program after learning enough on how to code with python. But I ran into a problem when adding the functions.
When I…
Mearri
- 3
- 3
0
votes
1 answer
"This code is unreachable" warning in pycharm
The following part of my code is highlighted as code unreachable in pycharm IDE.
for row in range(frame_height):
for col in range(frame_width):
if i < binary_img.shape[0]:
pixel =…
Heeya
- 11
- 3
0
votes
1 answer
Why my boolean is unreachable code and compilation error?
I am doing a leave management system for my assignment. And this is the part where I ask user to save their registration. First, I use do...while(true) loop to ask for their info like name, ID , department, etc. I start with adding a boolean regErr…
Yeoh Joey
- 1
- 4
0
votes
0 answers
How to verify the source code that cannot be tested
I wrote all possible tests according to the requirements, made an analysis of the structural coverage (to make sure that I reached full coverage), added tests based on the results of the conducted analysis. However, there are still areas of code…
anspirer
- 1
0
votes
1 answer
How should I handle logically unreachable code
I have a class implementing an interface which forces me to implement 2 methods - fun check(): Boolean and fun onCheckFalse(): Int.
The usage looks something like:
if (check().not()) return onCheckFalse()
In my implementation, I always return true…
orirab
- 2,915
- 1
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0
votes
2 answers
Why is This React Code Unreachable When Its an Array But Works for a Single Object
Hi I want to use the map function to iterate over my data and populate a table in React. Using State I set my variable to an empty array but when I come to Map it the code is unreachable and I have no idea why.
Note: If I map an individual object…
Matt
- 23
- 6
0
votes
1 answer
How to pattern match objects in Scala
I am trying to use pattern matching on a List of objects. The method takes in queue: List[ScheduleChangeEvent]. ScheduleChangeEvent is a sealed trait with 4 different final case class's. Therefore, depending on what type of ScheduleChangeEvent the…
TreyBCollier
- 213
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- 8
0
votes
0 answers
C# Idiomatic runtime expression which always evaluates to true but is not detected as compile-time constant
I would like to have a C# runtime expression which always evaluates to true, but which the compiler does not recognize as a constant. (Motivation below) There are plenty of ways to achieve this, but I'm wondering if there's a nice most-idiomatic…
orion elenzil
- 4,484
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0
votes
1 answer
Cant access Instance Variables Inside Typescript Methods | It says the variable is unreachable
class User {
public pname: string;
private ptoken: string;
public token_status:boolean = false;
public constructor(pname: string, ptoken: string) {
this.pname = pname;
this.ptoken = ptoken;
}
public…
Milahn
- 21
- 3
0
votes
1 answer
Why does Java never reach the end of this if/else?
I've been scratching my head at this for hours now, but I can't seem to figure this one out.
I'm writing a program that has a constant loop going in a Thread, which occasionally sends back data to another part of the program using an Arraylist.
I…
Berne Gerrits
- 1
- 1
0
votes
0 answers
How to fix the 'This code is unreachable' error in PyCharm
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
ball.x += ball_speed_x #This line is unreachable
ball.y += ball_speed_y
It doesn't matter what I type in that…
EMM-J
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