Add the clang library to the repo (with some of my changes, too).

1 files changed, 64 insertions, 0 deletions

diff --git a/clang/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-cxx0x-no-extra-copy.cpp b/clang/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-cxx0x-no-extra-copy.cpp
new file mode 100644
index 0000000..27eb6d1
--- /dev/null
+++ b/clang/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-cxx0x-no-extra-copy.cpp
@@ -0,0 +1,64 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
+
+// C++03 requires that we check for a copy constructor when binding a
+// reference to a reference-compatible rvalue, since we are allowed to
+// make a copy. C++0x does not permit the copy, so ensure that we
+// don't diagnose cases where the copy constructor is unavailable.
+
+struct X1 {
+  X1();
+  explicit X1(const X1&);
+};
+
+struct X2 {
+  X2();
+
+private:
+  X2(const X2&);
+};
+
+struct X3 {
+  X3();
+
+private:
+  X3(X3&);
+};
+
+template<typename T>
+T get_value_badly() {
+  double *dp = 0;
+  T *tp = dp;
+  return T();
+}
+
+template<typename T>
+struct X4 {
+  X4();
+  X4(const X4&, T = get_value_badly<T>());
+};
+
+void g1(const X1&);
+void g2(const X2&);
+void g3(const X3&);
+void g4(const X4<int>&);
+
+void test() {
+  g1(X1());
+  g2(X2());
+  g3(X3());
+  g4(X4<int>());
+}
+
+// Check that unavailable copy constructors do not cause SFINAE failures.
+template<int> struct int_c { };
+
+template<typename T> T f(const T&);
+
+template<typename T>
+int &g(int_c<sizeof(f(T()))> * = 0);  // expected-note{{candidate function [with T = X3]}}
+
+template<typename T> float &g();  // expected-note{{candidate function [with T = X3]}}
+
+void h() {
+  float &fp = g<X3>();  // expected-error{{call to 'g' is ambiguous}}
+}