Add support for the __has_trivial_constructor type trait.

llvm-svn: 69245

1 files changed, 34 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/trivial-constructor.cpp b/clang/test/SemaCXX/trivial-constructor.cpp
new file mode 100644
index 00000000000..0c4231ef19c
--- /dev/null
+++ b/clang/test/SemaCXX/trivial-constructor.cpp
@@ -0,0 +1,34 @@
+// RUN: clang-cc -fsyntax-only -verify %s -std=c++0x
+struct T1 {
+};
+static_assert(__has_trivial_constructor(T1), "T1 has trivial constructor!");
+
+struct T2 {
+  T2();
+};
+static_assert(!__has_trivial_constructor(T2), "T2 has a user-declared constructor!");
+
+struct T3 {
+  virtual void f();
+};
+static_assert(!__has_trivial_constructor(T3), "T3 has a virtual function!");
+
+struct T4 : virtual T3 {
+};
+static_assert(!__has_trivial_constructor(T4), "T4 has a virtual base class!");
+
+struct T5 : T1 {
+};
+static_assert(__has_trivial_constructor(T5), "All the direct base classes of T5 have trivial constructors!");
+
+struct T6 {
+  T5 t5;
+  T1 t1[2][2];
+  static T2 t2;
+};
+static_assert(__has_trivial_constructor(T6), "All nonstatic data members of T6 have trivial constructors!");
+
+struct T7 {
+  T4 t4;
+};
+static_assert(!__has_trivial_constructor(T7), "t4 does not have a trivial constructor!");