Introduction to CHILL

image of Introduction to CHILL

CHILL1 is the high-level programming language defined and recommended by the International Telegraph and Telephone Consultative Committee (CCITT) for the production of software for telecommunication systems. The purpose of this document is to provide an overview of the main features of CHILL, by concentrating on their semantics and use, rather than on their syntax and subtle exceptional cases. The reader is not required to be familiar with CHILL, but is supposed to know at least another high-level programming language, such as Pascal.



Time Supervision

The time supervision facilities of CHILL provide means for supervising events that depend on time. This supervision may be based on elapsed or cyclic time intervals, or on absolute points of time. It is assumed that the concept of time exists externally to a CHILL program. The language does not specify the precise properties of time, but provides mechanisms to enable a program to interact with the external world’s view of time.


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