What is cyclomatic complexity number

Cyclomatic complexity is a metric that indicates the possible number of paths inside a code artifact, e.g., a function, class, or whole program.Developed this metric, first describing it in a 1976 paper.It is a software metric that measures the logical complexity of the program code.Mccabe proposed the cyclomatic number, v (g) of graph theory as an indicator of software complexity.For a program control graph g, cyclomatic number, v (g), is given as:

While it's not an exact science, it allows you to get a general idea of the complexity of functions, classes, and namespaces, which can be useful when looking for code to refactor.Create a new console application and immediately calculate your code metrics by going to analyze > calculate code.E is total number of edges in the flow graph.Mccabe's cyclomatic can be broken down into the following formula.The cyclomatic number is equal to the number of linearly independent paths through a program in its graphs representation.

P = the number of connected components.A number of metrics have been proposed for quantifying the complexity of a program, and studies have been done to correlate the complexity with maintenance effort.It counts the number of decisions in the given program code.The quantitative calculation of the number of linearly independent paths in a code section is the cyclomatic complexity.Cyclomatic complexity is a source code complexity measurement that is being correlated to a number of coding errors.

A higher count is bad because it increases the chances for logical errors escaping your testing strategy.The higher the number, the more complex the code.Given a control flow graph g of a program, the cyclomatic complexity v (g) can be computed as:Statement coverage for code coverage.And, the more complex the code, the more likely it will:

The cyclomatic complexity v (g) for a flow graph g can.The cyclomatic complexity algorithm is used to derive a measurable value based on the number of edges and nodes within the graph as well as the total count of connected components or exit nodes.How can testers use it?