Re: Decimal: Formal review begins.

From: Matt Borland (matt_at_[hidden])
Date: 2025-01-16 13:06:46

> What is the status of the DTR? It looks to be dated from 2009. Is it
> realistic to think it will get into std at some point?
> 

> Thanks,
> Ruben.

The only update I found was https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3407.html. I emailed Dietmar a while back to ask why it was never accepted, but I did not receive a response.

Do I think decimal numbers should be in the standard? Yes, they're a type specified by IEEE 754 since 2008. SG6 has decimal floating point listed in their blurb of focus areas on the ISO Cpp website. It would be an uphill battle because Chris and I are outsiders to the committee, and this would be a huge proposal that touches a large percentage of the standard library. It would then take many years to get implemented. Last I checked libc++ still does not support C++17 math special functions and this would add to that. Chris and I said we would revisit talks on whether or not this is worth the effort once it's been accepted in boost, because then we at least have the reference implementation in hand.

Matt