Computer programs are a complex combination of protectable and non-protectable components, so the protection of literary material alone is not enough. Non-literal duplication refers to duplicating the structure, order, and organization of the code. Again, for it to be considered a knockoff, it requires the presence of legal matters. Non-literal copying is a conundrum, as the courts are still more aware of this, as is often shown. This is because the code is both expressive and functional, and it is harder than traditional disciplines to identify the functional aspects that can be copyrighted.
The concept of non-literal copying brings a lot of uncertainty as copyright is not intended to protect functionality, but if you claim that your code achieves the same functionality with a slightly different programming approach it is considered a violation. getantivirus.co can help you in that case. Just as copyright occurs when the original line of source code is written by a programmer, each addition or modification to sufficiently original source code causes another copyright. For this reason, computer programs are usually protected by a series of copyrights, from the time they are first created until the last modification, rather than single copyright.