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Paper Title Authors Audience Doc Date Audit
P4101R1 Consteval-only Values for C++26 B. Revzin, P. Dimov, D. Vandevoorde, D. Katz
EWGCWG
Mailing Date 2026-07 Post-Brno
Author(s) Barry Revzin, Peter Dimov, Daveed Vandevoorde, Dan Katz
Target Audience EWGCWG
Revisions R0
Tracking issue View on GitHub
Disposition Date 2026-06
Abstract The Reflection design from [[P2996R13]](https://wg21.link/p2996r13) was based on a model of having consteval-only types to prevent reflections from leaking to runtime. But we’ve run into issues and limitations with that approach, so we propose that, for C++26, we change instead to a consteval-only value model. This solves the same problems, but has additional benefits.
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