diff options
Diffstat (limited to 'clang/lib/Sema/SemaCast.cpp')
| -rw-r--r-- | clang/lib/Sema/SemaCast.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaCast.cpp b/clang/lib/Sema/SemaCast.cpp index a905ebc6730..7a8cbca1e3f 100644 --- a/clang/lib/Sema/SemaCast.cpp +++ b/clang/lib/Sema/SemaCast.cpp @@ -2311,6 +2311,24 @@ static TryCastResult TryReinterpretCast(Sema &Self, ExprResult &SrcExpr, return SuccessResult; } + // Diagnose address space conversion in nested pointers. + QualType DestPtee = DestType->getPointeeType().isNull() + ? DestType->getPointeeType() + : DestType->getPointeeType()->getPointeeType(); + QualType SrcPtee = SrcType->getPointeeType().isNull() + ? SrcType->getPointeeType() + : SrcType->getPointeeType()->getPointeeType(); + while (!DestPtee.isNull() && !SrcPtee.isNull()) { + if (DestPtee.getAddressSpace() != SrcPtee.getAddressSpace()) { + Self.Diag(OpRange.getBegin(), + diag::warn_bad_cxx_cast_nested_pointer_addr_space) + << CStyle << SrcType << DestType << SrcExpr.get()->getSourceRange(); + break; + } + DestPtee = DestPtee->getPointeeType(); + SrcPtee = SrcPtee->getPointeeType(); + } + // C++ 5.2.10p7: A pointer to an object can be explicitly converted to // a pointer to an object of different type. // Void pointers are not specified, but supported by every compiler out there. |
