WG21-P3505R4 Floating-Point to_chars(): New Default Conversion Specifiers
INCREASED feature-test macro:
#define __cpp_lib_to_chars 202606L
Note: We are not yet accepting PRs for C++29 features.
As this is a (hopefully) low-impact behavioral change to an existing API (C++17's Final Boss, <charconv>) that doesn't introduce new names, we can implement this unconditionally. (Also, @jwakely mentioned that at the June 2026 meeting in Brno, he called out this paper as having been supposed to be a DR when it came up for a vote, so it should be treated as such.) However, I'd like a WP to be released with this paper applied and the feature-test macro verified, before moving this to Available.
WG21-P3505R4 Floating-Point
to_chars(): New Default Conversion SpecifiersINCREASED feature-test macro:
Note: We are not yet accepting PRs for C++29 features.
As this is a (hopefully) low-impact behavioral change to an existing API (C++17's Final Boss,
<charconv>) that doesn't introduce new names, we can implement this unconditionally. (Also, @jwakely mentioned that at the June 2026 meeting in Brno, he called out this paper as having been supposed to be a DR when it came up for a vote, so it should be treated as such.) However, I'd like a WP to be released with this paper applied and the feature-test macro verified, before moving this to Available.