[Cfp-interest 1904] AI about sign bit in C

[Jim Thomas]

Action item:
> Jim: Look at other uses of the phrase "sign bit" in the C standard.
> 


There are 10 occurrences of “sign bit” in N2596:

6 in 6.2.6, about integers
1 in 6.7.2.1, pertaining to bit fields
1 in F.10.13.2, specifying setpayload
1 in F.10.13.3 specifying setpayloadsig
1 in the index

F.10.13.2 and F.10.13.3 specify a “zero sign bit” for a resulting NaN. I don’t see any such specification in IEEE 754. If it’s not there, we should consider removing it from C.

- Jim Thomas

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