https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124368
--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Marek Polacek <[email protected]>: https://gcc.gnu.org/g:8db7ba7ffbf83c624b572e45c9525ad5740b8f54 commit r16-7901-g8db7ba7ffbf83c624b572e45c9525ad5740b8f54 Author: Marek Polacek <[email protected]> Date: Wed Mar 4 17:32:14 2026 -0500 c++/reflection: fix return value of meta::extent [PR124368] std::meta::extent returns a size_t, but eval_extent returns either size_zero_node or size_binop(), both of which are of type sizetype, which is not the C/C++ size_t and so we don't pass the check in cxx_eval_outermost_constant_expr: /* Check we are not trying to return the wrong type. */ if (!same_type_ignoring_top_level_qualifiers_p (type, TREE_TYPE (r))) We should convert to size_type_node which represents the C/C++ size_t, like for instance fold_sizeof_expr does. PR c++/124368 gcc/cp/ChangeLog: * reflect.cc (eval_extent): Convert the result to size_type_node. gcc/testsuite/ChangeLog: * g++.dg/reflect/extent1.C: New test. Reviewed-by: Jakub Jelinek <[email protected]>
