Set Type and Its Extension to the C

This paper discusses the topic about extending the set type to the C based on source-to-source conversion. The algorithm for implementation is given and the relevant issues are discussed. The virtues of extending by source-to-source conversion is that it is unnecessary to modify the C compiler and eonsequently the cost is low. The implementation consideration and the algorithm can be used for the reference in designing source-to-source conversion systems and programming in C.