p4.cpp revision 54042f1bd78f1f1ea86be7d4af541462e127d2ed 
1// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify
2
3void missing_lambda_declarator() {
4  [](){}();
5}
6
7template<typename T> T get();
8
9void infer_void_return_type(int i) {
10  if (i > 17)
11    return []() { }();
12
13  if (i > 11)
14    return []() { return; }();
15
16  return [](int x) {
17    switch (x) {
18    case 0: return get<void>();
19    case 1: return;
20    }
21  }(7);
22}
23
24struct X { };
25
26X infer_X_return_type(X x) {
27  return [&x](int y) { // expected-warning{{omitted result type}}
28    if (y > 0)
29      return X();
30    else
31      return x;
32  }(5);
33}
34
35X infer_X_return_type_fail(X x) {
36  return [x](int y) { // expected-warning{{omitted result type}}
37    if (y > 0)
38      return X();
39    else // FIXME: shouldn't mention blocks
40      return x; // expected-error{{return type 'const X' must match previous return type 'X' when block literal has unspecified explicit return type}}
41  }(5);
42}
43