https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121244
Franz Sirl <sirl at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sirl at gcc dot gnu.org
--- Comment #3 from Franz Sirl <sirl at gcc dot gnu.org> ---
Created attachment 61982
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61982&action=edit
-save-temps result
With Qt6 (6.6.2 here) headers it happens with a simple
#include <Qt6Core/qstring.h>
compiled with
# g++-trunk -std=gnu++20 -c -Wsfinae-incomplete -I /usr/include/qt6
test-qt6.cpp
In file included from /usr/include/qt6/QtCore/qstring.h:22,
from test-qt6.cpp:2:
/usr/include/qt6/QtCore/qanystringview.h:31:7: warning: defining
'QAnyStringView', which previously failed to be complete in a SFINAE context
[-Wsfinae-incomplete=]
31 | class QAnyStringView
| ^~~~~~~~~~~~~~
In file included from
/home/fsirl/rpmbuild/BUILD/gcc-16.0.0+gitr16+2484/libstdc++-v3/include/std/unordered_map:44,
from
/home/fsirl/rpmbuild/BUILD/gcc-16.0.0+gitr16+2484/libstdc++-v3/include/std/functional:80,
from /usr/include/qt6/QtCore/qchar.h:9,
from /usr/include/qt6/QtCore/qstring.h:14:
/home/fsirl/rpmbuild/BUILD/gcc-16.0.0+gitr16+2484/libstdc++-v3/include/bits/range_access.h:325:24:
note: here. Use '-Wsfinae-incomplete=2' for a diagnostic at that point
325 | -> decltype(__cont.data())
| ~~~~~~~^~~~
I'm attaching the compressed -save-temps output.
