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[Bug c++/45668] New: Request warning for mismatched declaration/definition attributes (instead of chances for an indirect error)
- From: "tbptbp at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 Sep 2010 15:21:13 -0000
- Subject: [Bug c++/45668] New: Request warning for mismatched declaration/definition attributes (instead of chances for an indirect error)
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
As g++ now may, or may not, produce an indirect error on mismatched attributes
between a forward declaration and later definition, and that is incredibly
confusing to the end-user (aka me), i hereby humbly ask for a warning in such
condition; a hint at the problematic declaration would be a plus.
But, really, anything but that cryptic mismatched prototype error one may get
when *using* such ill-formed type would be great.
Executive summary for PR 45642
class foo;
class bar {
void foobar(foo &);
};
class __attribute((aligned(16))) foo {};
// if unlucky, an error about void bar::foobar(foo &)
// not matching void bar::foobar(foo &)
// when the culprit is foo's attributes.
void bar::foobar(foo &) {}
--
Summary: Request warning for mismatched declaration/definition
attributes (instead of chances for an indirect error)
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tbptbp at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45668