How is McCabes cyclomatic complexity calculated

The complexity of the function is 4 because it contains two if instructions, the first with 2 and the second with 1 logic condition:Let's see it in action.P => the no of connected components;Once this is produced, it is simply:The nodes of the graph correspond to indivisible groups of commands of a program, and a directed edge connects two nodes if the second command might be executed immediately af

Where n is the number of nodes of the control flow graph and e is the number of.Cyclomatic complexity is calculated as follows:Where m is the complexity, e is the number of edges, and p is the number of program exits points.That's why it is important to learn about software quality metrics — like cyclomatic complexity — and how to measure them accurately measure.It is a quantitative measure of the number of linearly independent paths through a program's source code.

This metric is an indication of the number of 'linear' segments in a method ( i.e.Sections of code with no branches) and therefore can be used to determine the number of tests required to obtain complete coverage.Properties of cyclomatic complexity are as follows −.Notice the cyclomatic complexity is at 2 (the lowest value possible).However, it can be one of the most difficult software quality metrics to understand.

Determine the number of test cases required.The original guidance for calculating the mccabe cyclomatic complexity metric (m) discusses edges (e), nodes (n) and connected components (p), giving us the following formula:Ifs is the number of if operators in the function, loops is the number of loops in the function, cases is the number of switch branches in the function (without default), and;Create a new console application and immediately calculate your code metrics by going to analyze > calculate code metrics for solution.