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authorJeffrey Yasskin <jyasskin@google.com>2010-06-07 15:58:05 +0000
committerJeffrey Yasskin <jyasskin@google.com>2010-06-07 15:58:05 +0000
commitcaa710dfd236bb2fa8aec42808aee2cef9ed99a8 (patch)
treedc9a0634d8f9bd7f28b39eed2be857372ef848c3 /clang/lib/Sema/SemaInit.cpp
parent18504440008badf4262c8137a8096a0a144a4d03 (diff)
downloadbcm5719-llvm-caa710dfd236bb2fa8aec42808aee2cef9ed99a8.tar.gz
bcm5719-llvm-caa710dfd236bb2fa8aec42808aee2cef9ed99a8.zip
PR7245: Make binding a reference to a temporary without a usable copy
constructor into an extension warning into the error that C++98 requires. llvm-svn: 105529
Diffstat (limited to 'clang/lib/Sema/SemaInit.cpp')
-rw-r--r--clang/lib/Sema/SemaInit.cpp10
1 files changed, 7 insertions, 3 deletions
diff --git a/clang/lib/Sema/SemaInit.cpp b/clang/lib/Sema/SemaInit.cpp
index ef99d1bd692..e34e1683e84 100644
--- a/clang/lib/Sema/SemaInit.cpp
+++ b/clang/lib/Sema/SemaInit.cpp
@@ -3326,12 +3326,16 @@ static Sema::OwningExprResult CopyObject(Sema &S,
break;
case OR_No_Viable_Function:
- S.Diag(Loc, diag::err_temp_copy_no_viable)
+ S.Diag(Loc, IsExtraneousCopy && !S.isSFINAEContext()
+ ? diag::ext_rvalue_to_reference_temp_copy_no_viable
+ : diag::err_temp_copy_no_viable)
<< (int)Entity.getKind() << CurInitExpr->getType()
<< CurInitExpr->getSourceRange();
S.PrintOverloadCandidates(CandidateSet, Sema::OCD_AllCandidates,
&CurInitExpr, 1);
- return S.ExprError();
+ if (!IsExtraneousCopy || S.isSFINAEContext())
+ return S.ExprError();
+ return move(CurInit);
case OR_Ambiguous:
S.Diag(Loc, diag::err_temp_copy_ambiguous)
@@ -3355,7 +3359,7 @@ static Sema::OwningExprResult CopyObject(Sema &S,
CurInit.release(); // Ownership transferred into MultiExprArg, below.
S.CheckConstructorAccess(Loc, Constructor, Entity,
- Best->FoundDecl.getAccess());
+ Best->FoundDecl.getAccess(), IsExtraneousCopy);
if (IsExtraneousCopy) {
// If this is a totally extraneous copy for C++03 reference
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