Press Release

PRQA Launch QA·C/QA·C++ Legacy Mode | Trustworthy Code Update

Targeted code analysis tools help turn fragile legacy software into rugged re-usable IP, while achieving incremental and full compliance

HERSHAM, UK, March 3 2009 / Following an extensive early adopter program, PRQA | Programming Research is pleased to announce the general release of QA·C / QA·C++ Legacy Mode; an important addition to the arsenal of tools and technologies in the advancement of software quality.

Based on the industry-leading analysis products for the C and C++ languages, QA·C/QA·C++ Legacy Mode offers a solution for managing the quality of legacy code. In targeting the maintenance of legacy code it provides developers with the tools they need to re-use valuable legacy software with confidence.

The PRQA solution incorporates several facets, allowing developers to focus on and quickly resolve the quality and bug issues in new code, while gaining access to legacy software. Precise diagnostic messaging is applied to source and common header files, allowing the accurate detection of source file differences between legacy and current versions. Sophisticated de-duplication and matching of these diagnostics then presents only relevant warnings.

Legacy code is a term referring to modules of older code, difficult to maintain and usually critical to the application. It presents difficult problems for developers, because while it may have brittle implementation, it nonetheless has proven to work in its original purpose. The challenge arises when trying to re-use such modules, often in a new and expanded context.

Legacy software represents a significant investment and valuable intellectual property for companies, but it is only when subjected to comprehensive and sophisticated code analysis that the true susceptibilities of legacy code are revealed. A small example of the extensive range of issues exposed from the re-use of legacy code includes: conversions that work, but only when the data values remain in a safe range; logical tests that always give a true answer, implying code that is not exercised; the various problems associated with the use of pointers or array bounds.

In addition to the precise matching of diagnostic output between ‘before’ and ‘after’ code versions, the solution includes powerful presentation of diagnostics in the PRQA Message Browser, the ability to interactively apply further diagnostic suppression, and the ability to preserve visibility of “hot-spot” diagnostics that should always be fixed. Through QA·C/QA·C++ Legacy Mode, software professionals are now offered a comprehensive solution for the careful resolution of legacy bugs.

Media Contacts

Fran Buchmann
Tel: +44 1932 888 080

Napier Partnership Limited
Suzy Kenyon, PR Agent for Programming Research
Tel: +44 1243 531 123