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.



Exception Handling

Exceptions are unexpected conditions that occur during the execution of a program, like the dereferencing of an empty reference or the indexing of an array with an index value out of bounds. When such an exception occurs, the program should not stop, but it should be able to handle this run-time error, trying to recover from it. CHILL defines an easy, comprehensive way to treat those error conditions: the exception handling mechanism.


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