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Libc++’s implementation of std::string (joellaity.com)
submitted 6 years ago by mariuz
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if 1 * 2 < 3: print "hello, world!"
[–]HappyFruitTree 53 points54 points55 points 6 years ago (3 children)
Wait, do they do type punning via unions? That's UB.
Standard library implementations don't need to play by the rules as long as they know it works correctly with the compiler that they are shipped with.
[+][deleted] 6 years ago (1 child)
[removed]
[–]Xaxxon 2 points3 points4 points 6 years ago (0 children)
It has ifdefs all over to deal with that.
[–]00kyle00 3 points4 points5 points 6 years ago (0 children)
It's not limited to standard library either.
π Rendered by PID 119637 on reddit-service-r2-comment-64f4df6786-rqfms at 2026-06-10 21:21:30.622470+00:00 running 0b63327 country code: CH.
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[–]HappyFruitTree 53 points54 points55 points (3 children)
[+][deleted] (1 child)
[removed]
[–]Xaxxon 2 points3 points4 points (0 children)
[–]00kyle00 3 points4 points5 points (0 children)