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Paper Title Authors Audience Doc Date Audit
P3505R4 Fix the default floating-point representation in std::format V. Zverovich, J. Jeon
LWG
Mailing Date 2026-07 Post-Brno
Author(s) Victor Zverovich, Junekey Jeon
Target Audience LWG
Tracking issue View on GitHub
Disposition Date 2026-06
Abstract When `std::format` was proposed for standardization, floating-point formatting was defined in terms of `std::to_chars` to simplify specification. While being a positive change overall, this introduced a small but undesirable change compared to the design and reference implementation in [FMT], resulting in surprising behavior to users, performance regression and an inconsistency with other mainstre
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