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

1 files changed, 68 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/default-constructor-initializers.cpp b/clang/test/SemaCXX/default-constructor-initializers.cpp
new file mode 100644
index 0000000..e783f49
--- /dev/null
+++ b/clang/test/SemaCXX/default-constructor-initializers.cpp
@@ -0,0 +1,68 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+struct X1 { // has no implicit default constructor
+   X1(int);
+};
+
+struct X2  : X1 {  // expected-note 2 {{'X2' declared here}}
+   X2(int);
+};
+
+struct X3 : public X2 { // expected-error {{implicit default constructor for 'X3' must explicitly initialize the base class 'X2' which does not have a default constructor}}
+};
+X3 x3; // expected-note {{first required here}}
+
+
+struct X4 { // expected-error {{must explicitly initialize the member 'x2'}} \
+            // expected-error {{must explicitly initialize the reference member 'rx2'}}
+  X2 x2; 	// expected-note {{member is declared here}}
+  X2 & rx2; // expected-note {{declared here}}
+};
+
+X4 x4; // expected-note {{first required here}}
+
+
+struct Y1 { // has no implicit default constructor
+   Y1(int);
+};
+
+struct Y2  : Y1 { 
+   Y2(int);
+   Y2();
+};
+
+struct Y3 : public Y2 {
+};
+Y3 y3; 
+
+struct Y4 {
+  Y2 y2; 
+};
+
+Y4 y4;
+
+// More tests
+
+struct Z1 { // expected-error {{must explicitly initialize the reference member 'z'}} \
+            // expected-error {{must explicitly initialize the const member 'c1'}}
+  int& z;       // expected-note {{declared here}}
+  const int c1; // expected-note {{declared here}}
+  volatile int v1;
+};
+
+// Test default initialization which *requires* a constructor call for non-POD.
+Z1 z1; // expected-note {{first required here}}
+
+// Ensure that value initialization doesn't use trivial implicit constructors.
+namespace PR7948 {
+  // Note that this is also non-POD to ensure we don't just special case PODs.
+  struct S { const int x; ~S(); };
+  const S arr[2] = { { 42 } };
+}
+
+// This is valid
+union U {
+  const int i;
+  float f;
+};
+U u;