Strange behavior of iota

jmh530 john.michael.hall at
Wed Feb 16 20:37:19 UTC 2022

On Wednesday, 16 February 2022 at 19:35:00 UTC, jmh530 wrote:
> [snip]
> Step 1: In the integral overloads, use allSatisfy!(isSigned, B, 
> E) || allSatisfy!(isUnsigned, T, U) for the current behavior
> Step 2: When !(allSatisfy!(isSigned, B, E) || 
> allSatisfy!(isUnsigned, T, U)), then convert to narrowest 
> common type as I mentioned (long in your case).
> This would preserve the current size when the types are both 
> either signed or unsigned and then would expand it only when 
> there are different signed-ness. This also makes the behavior 
> change at compile-time instead of throwing at runtime.

T/U should be B/E

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