Teach Sema::MergeFunctionDecl to properly check for an out-of-line definition of a function that is declared as =default in its class definition.

First part of PR27699.

Patch by Cristina Cristescu!

Reviewed by Richard Smith and me.

llvm-svn: 269935

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/cxx0x-defaulted-functions.cpp b/clang/test/SemaCXX/cxx0x-defaulted-functions.cpp
index 617a2571631..2aaf6197b64 100644
--- a/clang/test/SemaCXX/cxx0x-defaulted-functions.cpp
+++ b/clang/test/SemaCXX/cxx0x-defaulted-functions.cpp
@@ -150,6 +150,14 @@ namespace PR13527 {
   Y::~Y() = default; // expected-error {{definition of explicitly defaulted}}
 }
 
+namespace PR27699 {
+  struct X {
+    X();
+  };
+  X::X() = default; // expected-note {{here}}
+  X::X() = default; // expected-error {{redefinition of 'X'}}
+}
+
 namespace PR14577 {
   template<typename T>
   struct Outer {