Merge branch 'master' of ssh://bitbucket.org/czan/honours

1 files changed, 51 insertions, 0 deletions

diff --git a/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p4.cpp b/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p4.cpp
new file mode 100644
index 0000000..d816e17
--- /dev/null
+++ b/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p4.cpp
@@ -0,0 +1,51 @@
+// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
+
+void missing_lambda_declarator() {
+  [](){}();
+}
+
+template<typename T> T get();
+
+void infer_void_return_type(int i) {
+  if (i > 17)
+    return []() { }();
+
+  if (i > 11)
+    return []() { return; }();
+
+  return [](int x) {
+    switch (x) {
+    case 0: return get<void>();
+    case 1: return;
+    case 2: return { 1, 2.0 }; // expected-error{{cannot deduce lambda return type from initializer list}}
+    }
+  }(7);
+}
+
+struct X { };
+
+X infer_X_return_type(X x) {
+  return [&x](int y) { // expected-warning{{omitted result type}}
+    if (y > 0)
+      return X();
+    else
+      return x;
+  }(5);
+}
+
+X infer_X_return_type_fail(X x) { 
+  return [x](int y) { // expected-warning{{omitted result type}}
+    if (y > 0)
+      return X();
+    else 
+      return x; // expected-error{{return type 'const X' must match previous return type 'X' when lambda expression has unspecified explicit return type}}
+  }(5);
+}
+
+struct Incomplete; // expected-note{{forward declaration of 'Incomplete'}}
+void test_result_type(int N) {
+  auto l1 = [] () -> Incomplete { }; // expected-error{{incomplete result type 'Incomplete' in lambda expression}}
+
+  typedef int vla[N];
+  auto l2 = [] () -> vla { }; // expected-error{{function cannot return array type 'vla' (aka 'int [N]')}}
+}