[Bug libstdc++/127220] <format>: clang rejects every dynamic width or precision ("{:{}}") in C++26 mode: __check_dynamic_spec is instantiated before its definition

stevensudit at gmail dot com gcc-bugzilla@gcc.gnu.org
Sat Sep 5 02:15:56 GMT 2026


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127220

--- Comment #1 from Steve Sudit <stevensudit at gmail dot com> ---
Created attachment 65511
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65511&action=edit
reduction without <format>: template instantiated before its definition (gcc,
MSVC, EDG accept; clang rejects)


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