[incorrect info]P0067R3 support

[ByunghoonKim]

Which proposal(s) is / are affected?

P0067R3

Which compiler / toolchain is affected?

1. LLVM

• libc++ 14 "Floating-point support for std::to_chars support has been added. Thanks to Stephan T. Lavavej and Microsoft for providing their implementation to libc++."
• libc++15 "The functions std::from_chars and std::to_chars now have 128-bit integral support."
• P0067R3: Elementary string conversions #103643 is marked as closed.
• libc++16 "P2291R3 - Add Constexpr Modifiers to Functions to_chars and from_chars for Integral Types in Header"

2. Xcode support came in three folds.

• integral types - macOS 10.15 -> Xcode ???
• floating-point types - macOS 13.3 -> Xcode 14.3??
• Xcode 15 "P2291R3 - Add constexpr modifiers to functions to_chars and from_chars for integral types in header"

Note

It seems to me, LLVM15 finalized the implementation of P0067R3 without saying so in the release note because the following paper, P2291R3 constexpr-ification, gets implemented in LLVM16. Similar story for Xcode14 and Xcode 15. Need to be verified, though.

Thanks.