Commit Graph

4 Commits

Author SHA1 Message Date
John McCall 2575d88059 Diagnose typedef names for linkage purposes that would change
a previously-computed linkage as an unsupportable error condition.

Per discussion on cfe-commits, this appears to be a
difficult-to-resolve flaw in our implementation approach;
we may pursue this as a language defect, but for now it's
better to diagnose it as unsupported than to produce
inconsistent results (or assertions).  Anything that we can
do to limit how often this diagnostic fires, such as the
changes in r200380, is probably for the best, though.

llvm-svn: 200438
2014-01-30 01:12:53 +00:00
Richard Smith 92f241f188 Properly compute triviality for explicitly-defaulted or deleted special members.
Remove pre-standard restriction on explicitly-defaulted copy constructors with
'incorrect' parameter types, and instead just make those special members
non-trivial as the standard requires.

This required making CXXRecordDecl correctly handle classes which have both a
trivial and a non-trivial special member of the same kind.

This also fixes PR13217 by reimplementing DiagnoseNontrivial in terms of the
new triviality computation technology.

llvm-svn: 169667
2012-12-08 02:53:02 +00:00
David Blaikie 0a8e8999d6 Don't provide errors for anonymous unions when they're actually anonymous classes.
llvm-svn: 142551
2011-10-19 22:43:29 +00:00
Argyrios Kyrtzidis 33aee3934a Emit diagnostic error when the field of an anonymous struct is non trivial.
llvm-svn: 111158
2010-08-16 17:27:08 +00:00