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I'm very confused in calculating the cyclomatic complexity. For the above program, I get the answer as 3, as there are two conditions and V(G)=P+1=2+1=3. But the answer is incorrect.
Calculating McCabe is not as simple as counting if statements and adding one. You have to count the number of possible paths through your code.
In your example:
if contains an or so there are 3 ways that you can go through that leg, (either or both condition being true). if contains an and so there are 3 ways, (either or both condition being false), to go through the elseThe various tools that can be used to compute McCabe often disagree with each other and the tools that give a McCabe for the whole file are basically useless as they will give an exaggerated value if the file contains a lot of code. McCabe should only be considered on a per function basis but you can calculate the Maximum and Average values to highlight files that are the most in need of attention.
