Description: The term ‘opaque’ in the context of C++ refers to a type of data structure whose internal details are hidden from the user. This concept is based on the idea of encapsulation, which is fundamental in object-oriented programming. By using opaque structures, programmers can define clear and simple interfaces for interacting with data, without exposing the complexity of its implementation. This not only enhances code security but also facilitates maintenance and evolution, as changes in the internal implementation do not affect the users of the structure. Opaque structures allow developers to work with data in a more abstract way, promoting code reuse and reducing errors. In C++, this is often achieved through the use of pointers to structures that are defined in an implementation file, while the structure declaration remains hidden in a header file. This approach is particularly useful in software libraries and APIs, where the goal is to provide a clean and easy-to-use interface without revealing details that could complicate its use or create unnecessary dependencies.
