devxlogo

Designing Legacy Code Wrapper Classes

Designing Legacy Code Wrapper Classes

In many systems, legacy C code is combined with newer C++ code. A common (yet wrong) practice is to wrap the C functions in a single C++ class and create a single instance thereof, which provides as its interface a series of operations mapped directly to the legacy functions. However, such a general wrapper class is not recommended. It allows indiscriminate access to a variety of unrelated operations. In addition, it isn’t really an object-oriented solution; rather, such a class is merely a collection of operations. A better design approach is to divide the legacy functions into meaningful, self-contained units and wrap each unit by a dedicated class. For example, instead of wrapping a bunch of legacy networking functions in a large class, it is advisable to group these functions according to specific protocols.

See also  11 Effective Keyword Research Tools and Techniques
devxblackblue

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist