Questions tagged [cyclomatic-complexity]
The cyclomatic-complexity tag has no usage guidance.
31
questions
2
votes
0answers
65 views
A question about cyclomatic complexity
Assume the flow graph of a function is below (sorry I have forgotten the code of the function):
And when I try to calculate the cyclomatic complexity:
When I use the edge and node to calculate it, V(...
2
votes
2answers
389 views
Summing cyclomatic complexity of function or files
Is the sum of the cyclomatic complexity of all section in a file the total cyclomatic complexity for this file? If it is, is the sum of a set of related files the total cyclomatic complexity for this ...
5
votes
2answers
26k views
if and else or if and return?
I have a Java method with a void type of return that checks a condition. It do something in case of true and other thing in case of false, typical if / else structure, but is possible use only the if ...
3
votes
4answers
589 views
Are short-circuiting paths considered for path coverage?
In a book Doron A. Peled, he states that "
path coverage does not subsume multiple condition coverage because you
can execute all the paths without exercising all the conditions.
But I believe ...
1
vote
1answer
627 views
How to compute cyclomatic complexity for empty whiles and if + breaks?
This is closely related to this question which asks about the complexity of the following:
while (x > level)
x = x – 1;
x = 0
Using the graph method it has a Complexity = 2. Fred Swartz ...
3
votes
1answer
695 views
Cyclomatic Complexity Question
I have a general question pertaining to Cyclomatic Complexity. Please have a look at the attached source code:
private void downShift(int index)
{
// index of "child", which will be either index *...
0
votes
3answers
917 views
Code pattern to have the least possible code complexity (Javascript)
I've been looking for the ideal coding patterns used to score well in a Cyclomatic Complexity.
Of course, code will be subject to change according to what is being developed but regardless the ...
0
votes
2answers
1k views
Relation between LOC and Cyclomatic Complexity
Is there something that ratio of the metrics LOC and Sum Cyclomatic Complexity in a project with many modules can talk about?
Does it show the logical complexity of a module/project?
1
vote
1answer
70 views
Can basis path technique (derived from cyclomatic complexity) be used on non-source code?
I know that McCabe basis path testing ensures that all linearly independent paths are tested, making sure that all code branches were covered in an effective manner.
But nowadays, I doubt anybody ...
0
votes
1answer
596 views
Calculating cyclomatic complexity/ mccab's number
if field is blank or in form
print "enter again"
else
if no credit and debit < 1000
print "less amount"
else
print "accessed"
end if
end if
I'm very confused in calculating the ...
7
votes
3answers
3k views
Cyclomatic Complexity spread over non-reusable functions
I am frequently writing parser and mappers of some sort. This means that the switch statement gets used a lot and often many if statements for checking for valid input.
This of course creates a lot ...
10
votes
7answers
5k views
Why is cyclomatic complexity that important for a single method?
I am using SonarLint for Eclipse since recently, and it helped me a lot. However, it raised to me a question about cyclomatic complexity.
SonarLint considers as acceptable a C.C of 10, and there are ...
3
votes
5answers
682 views
Cyclomatic complexity while protecting input
I need to reduce the cyclomatic complexity of my input tests. I have no control over the inputs, so I have to go through all of these checks.
if(y1 < 2000 || y2 < 2000 ||
!(m1 >= 1 &&...
3
votes
2answers
903 views
Cyclomatic complexity vs performance
As far as I understand the concept, CC is determined by how many nested branched logic the given method have. It can be refactored to checking the opposite of original predicate and calling return. ...
4
votes
3answers
351 views
What are the potential tradeoffs for lower down Cyclomatic Complexity
Since high Cyclomatic Complexity is harmful, and it would be beneficial to lower it down by creating sub functions. However, it might lead to a long calling queue and lead to some super nested ...
4
votes
3answers
886 views
Can we have a negative cyclomatic complexity?
I am having a hard time to understand cyclomatic complexity. I went through some videos in youtube for this. I got negative value for cyclomatic complexity when I use this formula M = E - N + P. I ...
6
votes
3answers
6k views
How to calculate Cyclomatic Complexity exactly?
My question is more about the transformation from programming code to control flow graph.
Say, I have a piece of code:
public class Contractor
{
// other member fields...
private bool ...
3
votes
2answers
3k views
Is cyclomatic complexity density a good software quality metric? [duplicate]
Where I define Cyclomatic complexity density as:
Cyclomatic complexity density = Cyclomatic complexity / Lines of code
I was reading previous discussions about cyclomatic complexity and there seems ...
1
vote
1answer
222 views
Cyclomatic complexity for 2 IFs - why not just FF or TT?
I know that cyclomatic complexity defines the number of independent paths in the code. Using the simple way, it can be calculated as number of IF +1. In that case, for a simple code with two IFs, CC ...
3
votes
1answer
4k views
equals and hashcode methods autogenerated, is it always a good practice?
Preamble: Let's say I aim to cover all my classes with test coverage.
Despite the common opinion (expecially in Java community) to "not pay too much attention to Cyclomatic Complexity (CC) and code ...
12
votes
5answers
5k views
Keep indentation level low [duplicate]
I hear a lot that you should not write functions larger than one screen size, that you should extract things into functions if you call things very often and all these coding guidelines. One of them ...
12
votes
2answers
2k views
Cyclomatic complexity when calling same method multiple times
Thanks to a question over at Code Review I got into a little disagreement (which essentially is an opportunity to learn something) about what exactly the Cyclomatic Complexity is for the below code.
...
23
votes
7answers
50k views
Avoid too complex method - Cyclomatic Complexity
Not sure how to go about this method to reduce Cyclomatic Complexity. Sonar reports 13 whereas 10 is expected. I am sure nothing harm in leaving this method as it is, however, just challenging me how ...
5
votes
1answer
4k views
Approaches to reduce cyclomatic complexity
I was running our code through JSHint, and decided to switch checks against cyclomatic complexity, and then went on long refactoring sprint. One place though baffled me, here is a code snippet:
var ...
11
votes
6answers
3k views
Do iterative methods reduce cyclomatic complexity and improve supportability?
Do iterative methods such as are commonly found in modern languages such as C#, JavaScript, and (hopefully) in Java 8 reduce cyclomatic complexity's impact on understandability and supportability of ...
6
votes
2answers
3k views
Cyclomatic complexity with two IFs - why it is 3?
I have read an article with following example:
void func()
{
if (condition1)
a = a + 1;
if (condition2)
a = a - 1;
}
It says the CC is 3 as there are three possible paths. How come? Why not 4? I ...
9
votes
2answers
5k views
How is technical debt best measured? What metric(s) are most useful? [duplicate]
Possible Duplicate:
How can I quantify the amount of technical debt that exists in a project?
If I wanted to help a customer understand the degree of technical debt in his application, what would ...
8
votes
1answer
2k views
Complexity of a web application
I am currently writing my Master's Thesis on maintainability of a web application. I found some methods like the "Maintainability Index" by Coleman et.al. or the "Software Maintainability Index" by ...
11
votes
3answers
5k views
Understanding Cyclomatic Complexity
I've recently come across Cyclomatic Complexity and I'd like to try to understand it better.
What are some practical coding examples of the different factors that go into calculating the complexity? ...
43
votes
4answers
75k views
What does the 'cyclomatic complexity' of my code mean?
I am new to static analysis of code. My application has a Cyclomatic complexity of 17,754. The application itself is only 37,672 lines of code. Is it valid to say that the complexity is high based on ...
9
votes
4answers
3k views
Does it make sense to compute cyclomatic complexity/lines of code ratio?
In general, maintainability index relies on many factors. For example, in Visual Studio, it rely on cyclomatic complexity, depth of inheritance, class coupling and lines of code; those four values ...
