https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117896
Bug ID: 117896
Summary: Unexpected warning when specializing a template
Product: gcc
Version: 14.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: paul.batzing at gmail dot com
Target Milestone: ---
Created attachment 59775
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59775&action=edit
reproducer code for template warning
see https://godbolt.org/z/hqoKe6bW3
Code to reproduce attached, built with flags -std=c++23 -O3 -flto
Produces unexpected warning
/app/main.cpp:26:12: warning: partial specialization 'struct
detail::getter_impl<S<T, other_type>, V>' is not more specialized than
26 | struct getter_impl<S<T, other_type>, V> {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/app/main.cpp:23:12: note: primary template 'template<class Q, typename
detail::ot_impl<decltype (Q{})>::type V> struct detail::getter_impl'
23 | struct getter_impl;
| ^~~~~~~~~~~
on gcc 14.2.1 and 15.0.0. Compiles without warning on clang 19.1.0.
