There is no reason for dereferencing a pointer-to-member to require
that the class type into which the pointer points be complete, even
though the standard requires it. GCC/EDG do not require a complete
type here, so we're calling this a problem with the standard. Fixes
PR8328.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116429 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index 00a3e27..3863479 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -2279,8 +2279,11 @@
QualType Class(MemPtr->getClass(), 0);
- if (RequireCompleteType(Loc, Class, diag::err_memptr_rhs_to_incomplete))
- return QualType();
+ // Note: C++ [expr.mptr.oper]p2-3 says that the class type into which the
+ // member pointer points must be completely-defined. However, there is no
+ // reason for this semantic distinction, and the rule is not enforced by
+ // other compilers. Therefore, we do not check this property, as it is
+ // likely to be considered a defect.
// C++ 5.5p2
// [...] to its first operand, which shall be of class T or of a class of