Safe, Efficient Garbage Collection for C++

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Safe, Efficient Garbage Collection for C++ (1993)

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by John R. Ellis , David L. Detlefs

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@TECHREPORT{Ellis93safe,efficient,
    author = {John R. Ellis and David L. Detlefs},
    title = {Safe, Efficient Garbage Collection for C++},
    institution = {},
    year = {1993}
}

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Abstract

We propose adding safe, efficient garbage collection to C++, eliminating the possibility of storage-management bugs and making the design of complex, object-oriented systems much easier. This can be accomplished with almost no change to the language itself and only small changes to existing implementations, while retaining compatibility with existing class libraries. Our proposal is the first to take a holistic, system-level approach, integrating four technologies. The language interface specifies how programmers access garbage collection through the language. An optional safe subset of the language automatically enforces the safe-use rules of garbage collection and precludes storage bugs. A variety of collection algorithms are compatible with the language interface, but some are easier to implement and more compatible with existing C++ and C implementations. Finally, codegenerator safety ensures that compilers generate correct code for use with collectors.

Keyphrases

efficient garbage collection language interface correct code small change safe-use rule optional safe subset programmer access garbage collection object-oriented system precludes storage bug codegenerator safety system-level approach storage-management bug class library garbage collection collection algorithm

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