How do you calculate McCabe s cyclomatic complexity example

Cyclomatic complexity = ( 1 + ifs + loops + cases ) where:About press copyright contact us creators advertise developers terms privacy policy & safety how youtube works test new features press copyright contact us creators.This calculation has used the definition of a program graph, and.Cyclomatic complexity is also used to measure the minimum effort and the best areas of concentration.Here is the pseudo code of a simple program and the cyclomatic complexity metric for it.

Where n is the number of nodes of the control flow graph and e is the number of edges in the control flow graph.It can computer fast than the halstead's metrics.P stands for the number of interconnected components.So here in this example:This has also a number of implications:

But calculating the cyclomatic complexity metric isn't so onerous that you couldn't easily do it on the fly during a code review.Where e equals the number of control flow graph edges.One for the path for the 'if' branch plus one for the path of the 'else' case.For our example, the cyclomatic complexity is 2:How this metric is useful for software testing?

The quantitative calculation of the number of linearly independent paths in a code section is the cyclomatic complexity.