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Secure Unix ancestor KSOS did type safety before Rust made it cool

5 points by sohkamyung

by pjmlp

0 subcomment

And NEWP by Burroughs, early 60's, still being sold by Unisys on ClearPath MCP, was one of the earlier systems languages with unsafe keyword.
With the property that using unsafe tainted the executables and required the admin to enable the right permission set.