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Helix QAC
Helix QAC, formerly QA·C is a commercial static code analysis software tool produced by Minneapolis, Minnesota-based software vendor Perforce Software.QAC means Quality Assurance and Control. The software was originally developed in 1986 by UK-based Programming Research Limited (PRQA) for the C language. Perforce acquired PRQA in May 2018. Helix QAC was used to make the C source code measurements given in the book ''Safer C'' by Les Hatton. HeliX QAC can be used for quality assurance of C source code and checking the code for conformance to coding guidelines such as MISRA C. Other functionality includes the ability to calculate code metrics for projects with large code-bases. The tools operate through an integrated development environment (IDE) designed to help maintain and understand old and new code using detailed cross references and a variety of graphical views. The tools can be used with a command line interface, and graphical IDE can be called to display the result. Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Static Code Analysis
In computer science, static program analysis (or static analysis) is the analysis of computer programs performed without executing them, in contrast with dynamic program analysis, which is performed on programs during their execution. The term is usually applied to analysis performed by an automated tool, with human analysis typically being called "program understanding", program comprehension, or code review. In the last of these, software inspection and software walkthroughs are also used. In most cases the analysis is performed on some version of a program's source code, and, in other cases, on some form of its object code. Rationale The sophistication of the analysis performed by tools varies from those that only consider the behaviour of individual statements and declarations, to those that include the complete source code of a program in their analysis. The uses of the information obtained from the analysis vary from highlighting possible coding errors (e.g., the lint t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perforce Software
Perforce, legally Perforce Software, Inc., is an American developer of software used for developing and running applications, including version control software, web-based repository management, developer collaboration, application lifecycle management, web application servers, debugging tools and Agile planning software. The company is based in Minneapolis, Minnesota, and is equally owned by private equity firms Clearlake Capital and Francisco Partners. History Perforce Software was founded in 1995 in Alameda, California by Christopher Seiwald, a software developer and computer science graduate from UC Berkeley. Its first product was also called Perforce, and was a version control system allowing companies to collaborate on large software projects by keeping track of changes to both the source code and binary files. In June 2013, the company released Helix Swarm, a tool for developers working in different geographic areas to collaborate on code review. In June 2014, the compa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Programming Research Limited
Programming Research Limited (PRQA) was a United Kingdom-based developer of code quality management software for embedded software, which included the static program analysis tools QA·C and QA·C++, now known as Helix QAC. It created the High Integrity C++ software coding standard. In May 2018, the company was acquired by Minneapolis, MN-based Perforce Perforce, legally Perforce Software, Inc., is an American developer of software used for developing and running applications, including version control software, web-based repository management, developer collaboration, application lifecycle mana ..., and its products were renamed. References External links Programming Research Limited website Borough of Elmbridge Companies based in Surrey Privately held companies of the United Kingdom Science and technology in Surrey Software companies of the United Kingdom {{computer-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C (language)
C (''pronounced like the letter c'') is a general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie, and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems, device drivers, protocol stacks, though decreasingly for application software. C is commonly used on computer architectures that range from the largest supercomputers to the smallest microcontrollers and embedded systems. A successor to the programming language B, C was originally developed at Bell Labs by Ritchie between 1972 and 1973 to construct utilities running on Unix. It was applied to re-implementing the kernel of the Unix operating system. During the 1980s, C gradually gained popularity. It has become one of the most widely used programming languages, with C compilers available for practically all modern computer architectures and operating systems. C has been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Source Code
In computing, source code, or simply code, is any collection of code, with or without comments, written using a human-readable programming language, usually as plain text. The source code of a program is specially designed to facilitate the work of computer programmers, who specify the actions to be performed by a computer mostly by writing source code. The source code is often transformed by an assembler or compiler into binary machine code that can be executed by the computer. The machine code is then available for execution at a later time. Most application software is distributed in a form that includes only executable files. If the source code were included it would be useful to a user, programmer or a system administrator, any of whom might wish to study or modify the program. Alternatively, depending on the technology being used, source code may be interpreted and executed directly. Definitions Richard Stallman's definition, formulated in his 1989 seminal li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Les Hatton
Les Hatton (born 5 February 1948) is a British-born computer scientist and mathematician most notable for his work on failures and vulnerabilities in software controlled systems. He was educated at King's College, Cambridge 1967–1970 and the University of Manchester where he received a Master of Science degree in electrostatic waves in relativistic plasma and a Doctor of Philosophy in 1973 for his work on computational fluid dynamics in tornadoes. Although originally a geophysicist, a career for which he was awarded the 1987 Conrad Schlumberger Award for his work in computational geophysics, he switched careers in the early 1990s to study software and systems failure. He has published 4 books and over 100 refereed journal publicationshttps://scholar.google.com/scholar?&q=les+hatton Les Hatton's publications in Google Scholar and his theoretical and experimental work on software systems failure can be found in IEEE Transactions on Software Engineering, IEEE Computer, IEEE S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MISRA C
MISRA C is a set of software development guidelines for the C programming language developed by The MISRA Consortium. Its aims are to facilitate code safety, security, portability and reliability in the context of embedded systems, specifically those systems programmed in ISO C / C90 / C99. There is also a set of guidelines for MISRA C++ not covered by this article. History * Draft: 1997 * First edition: 1998 (rules, required/advisory) * Second edition: 2004 (rules, required/advisory) * Third edition: 2012 (directives; rules, Decidable/Undecidable) * MISRA compliance: 2016, updated 2020 For the first two editions of MISRA-C (1998 and 2004) all Guidelines were considered as Rules. With the publication of MISRA C:2012 a new category of Guideline was introduced - the ''Directive'' whose compliance is more open to interpretation, or relates to process or procedural matters. Adoption Although originally specifically targeted at the automotive industry, MISRA C has evolved as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Metric
In software engineering and development, a software metric is a standard of measure of a degree to which a software system or process possesses some property. Even if a metric is not a measurement (metrics are functions, while measurements are the numbers obtained by the application of metrics), often the two terms are used as synonyms. Since quantitative measurements are essential in all sciences, there is a continuous effort by computer science practitioners and theoreticians to bring similar approaches to software development. The goal is obtaining objective, reproducible and quantifiable measurements, which may have numerous valuable applications in schedule and budget planning, cost estimation, quality assurance, testing, software debugging, software performance optimization, and optimal personnel task assignments. Common software measurements Common software measurements include: * ABC Software Metric * Balanced scorecard * Bugs per line of code * Code coverage * Cohe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integrated Development Environment
An integrated development environment (IDE) is a software application that provides comprehensive facilities to computer programmers for software development. An IDE normally consists of at least a source code editor, build automation tools and a debugger. Some IDEs, such as NetBeans and Eclipse, contain the necessary compiler, interpreter, or both; others, such as SharpDevelop and Lazarus, do not. The boundary between an IDE and other parts of the broader software development environment is not well-defined; sometimes a version control system or various tools to simplify the construction of a graphical user interface (GUI) are integrated. Many modern IDEs also have a class browser, an object browser, and a class hierarchy diagram for use in object-oriented software development. Overview Integrated development environments are designed to maximize programmer productivity by providing tight-knit components with similar user interfaces. IDEs present a single program i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tools For Static Code Analysis
This is a list of notable tools for static program analysis (program analysis is a synonym for code analysis). Static code analysis tools Languages Ada * * * * * * * * * * * C, C++ * * * * * * * * * * * * * * * * * * * * * * * * * * Fortran * ''Fortran- Lint'' (Information Processing Techniques, Inc) IEC 61131-3 * CODESYS Static Analysis integrated add-on for CODESYS (application code realized e.g. in ST, FBD, LD) Java * * * * * * * JavaScript * ESLint JavaScript syntax checker and formatter. * Google's Closure Compiler JavaScript optimizer that rewrites code to be faster and smaller, and checks use of native JavaScript functions. * JSHint A community driven fork of JSLint. * JSLint JavaScript syntax checker and validator. * Semgrep A static analysis tool that helps expressing code standards and surfacing bugs early. A CI service and a rule library is also available. Julia JET.jl*StaticLint.jl(a li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Computing In The United Kingdom
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the invention of writing systems is considered prehistory. "History" is an umbrella term comprising past events as well as the memory, discovery, collection, organization, presentation, and interpretation of these events. Historians seek knowledge of the past using historical sources such as written documents, oral accounts, art and material artifacts, and ecological markers. History is not complete and still has debatable mysteries. History is also an academic discipline which uses narrative to describe, examine, question, and analyze past events, and investigate their patterns of cause and effect. Historians often debate which narrative best explains an event, as well as the significance of different causes and effects. Historians also debate the nature of history as an end in itself, as well as its usefulness to give perspective on the problems of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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