Implement some tests for defaulted constructors. To do this I had to

suppress an error we were previously emitting on valid union code.

llvm-svn: 131440

1 files changed, 45 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/cxx0x-defaulted-functions.cpp b/clang/test/SemaCXX/cxx0x-defaulted-functions.cpp
new file mode 100644
index 00000000000..86c5fd10e23
--- /dev/null
+++ b/clang/test/SemaCXX/cxx0x-defaulted-functions.cpp
@@ -0,0 +1,45 @@
+// RUN: %clang_cc1 -std=c++0x -fsyntax-only -verify %s
+
+void fn() = default; // expected-error {{only special member}}
+struct foo {
+  void fn() = default; // expected-error {{only special member}}
+
+  foo() = default;
+  foo(const foo&) = default;
+  foo(foo&) = default;
+  foo& operator = (const foo&) = default;
+  foo& operator = (foo&) = default;
+  ~foo() = default;
+};
+
+struct bar {
+  bar();
+  bar(const bar&);
+  bar(bar&);
+  bar& operator = (const bar&);
+  bar& operator = (bar&);
+  ~bar();
+};
+
+bar::bar() = default;
+bar::bar(const bar&) = default;
+bar::bar(bar&) = default;
+bar& bar::operator = (const bar&) = default;
+bar& bar::operator = (bar&) = default;
+bar::~bar() = default;
+
+// FIXME: static_assert(__is_trivial(foo), "foo should be trivial");
+
+static_assert(!__has_trivial_destructor(bar), "bar's destructor isn't trivial");
+static_assert(!__has_trivial_constructor(bar),
+              "bar's default constructor isn't trivial");
+static_assert(!__has_trivial_copy(bar), "bar has no trivial copy");
+static_assert(!__has_trivial_assign(bar), "bar has no trivial assign");
+
+void tester() {
+  foo f, g(f);
+  bar b, c(b);
+  f = g;
+  b = c;
+}
+