Literal operators can't have default arguments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152394 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index 4d7310a146..32284968c9 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -9389,6 +9389,19 @@ FinishedParams:
     return true;
   }
 
+  // A parameter-declaration-clause containing a default argument is not
+  // equivalent to any of the permitted forms.
+  for (FunctionDecl::param_iterator Param = FnDecl->param_begin(),
+                                    ParamEnd = FnDecl->param_end();
+       Param != ParamEnd; ++Param) {
+    if ((*Param)->hasDefaultArg()) {
+      Diag((*Param)->getDefaultArgRange().getBegin(),
+           diag::err_literal_operator_default_argument)
+        << (*Param)->getDefaultArgRange();
+      break;
+    }
+  }
+
   StringRef LiteralName
     = FnDecl->getDeclName().getCXXLiteralIdentifier()->getName();
   if (LiteralName[0] != '_') {