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A comment on My resignation letter as R7RS-large chair. Parent comment

Re:My resignation letter as R7RS-large chair by johncowan on Saturday August 19, 2023 @03:06PM (#37192017)
Which of course cannot be done portably except by drastic restrictions like "never add a number greater than MAXINT / 2 and never multiply a number greater than sqrt(MAXINT)".
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Re:My resignation letter as R7RS-large chair by mananaysiempre on Saturday August 19, 2023 @05:32PM (#37193449)
Soon™ we will have ckd_add etc. in the standard for this sort of thing, after several decades finally exposing functionality that any non-exotic CPU provides.

Except RISC-V, because RISC-V. Or, I expect, because they must have gathered statistics from a big chunk of real-world (mostly C and -compatible) code and got a bit fat nothing for the usage of the overflow flag—not because it's useless but precisely because you couldn't get at it from (compiler-independent) C.

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Re:My resignation letter as R7RS-large chair by snvzz on Saturday August 19, 2023 @10:12PM (#37195384)
Overflow isn't the only flag RISC-V doesn't have.

If floating point extensions aren't present, there aren't even flags.

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Re:My resignation letter as R7RS-large chair by fluoridation on Sunday August 20, 2023 @05:49PM (#37203231)
Since we're talking about implementing a compiler that merely uses C/++ as a convenient intermediate representation, it doesn't matter much.
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