Some Reusability Exercises in Persistent C *

Software reuse within an integrated programming environment has several advantages. The persistent programming language pC extends the language C with two simple operations, one to store objects of any type in a file, and the other to retrieve objects. This paper shows how pC allows software reuse within the dynamics of a programming language environment. Functions can be made persistent and reused since a pointer to a function is a valid type in C. A library of functions can be modelled as an array of function pointers within the language. It is also possible to attach reuse-information to each function by modelling the reuse library as an array of records.