I am looking for free software that can be used to measure software code complexity by using the mentioned metrics. Is there anyone who knows of a tool like this.
Have a look at the ConQAT tools by CQSE. CQSE is a university spin-off, and still involved into research. If this meets your expectations, you can download the tools. If you need further information, try to contact Elmar Jürgens: https://www.cqse.eu/en/team/elmar-juergens/
thank you all for your valuable comments. I scan all your suggested solutions. I want complexity measures for standard software used in researches such as: SPACE/ Siemens software(schedule /TCas/ repace ...etc) by using Halstead and Maccabe in addition to some reliability data. i found some of these data but still searching for more accurate once did any one knows about that??