Re: Safe Pointers at the Intermediate Language or Hardware Level

flaps@dgp.toronto.edu (Alan J Rosenthal)
11 Feb 2014 00:58:43 GMT

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From: flaps@dgp.toronto.edu (Alan J Rosenthal)
Newsgroups: comp.compilers
Date: 11 Feb 2014 00:58:43 GMT
Organization: Compilers Central
References: 14-02-007
Keywords: design, C, comment
Posted-Date: 11 Feb 2014 00:40:40 EST

I liked the "Saber C" C interpreter a few decades ago. It had what I think
you are calling "safe pointers".


They had a paper at Usenix in I think the very-late 1980s, but in a
nutshell, every pointer value contained three addresses: the actual
address value, the lowest you were allowed to go with that pointer
value, and the highest you were allowed to go.
[Worked great, but it was an interpreter. -John]

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