1// RUN: %clang_cc1 -fsyntax-only -std=c++1y -DCXX1Y -Wc++98-compat-pedantic -verify %s -DCXX1Y2
2// RUN: %clang_cc1 -fsyntax-only -std=c++1y -DCXX1Y -Wc++98-compat -Werror %s -DCXX1Y2
3// RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wc++98-compat-pedantic -verify %s
4// RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wc++98-compat -Werror %s
5// RUN: %clang_cc1 -fsyntax-only -std=c++98 -Werror %s -DCXX98
6
7// RUN: %clang_cc1 -fsyntax-only -std=c++1y -Wc++98-compat-pedantic -verify %s -Wno-c++98-c++11-compat-pedantic -DCXX1Y2
8
9// -Wc++98-compat-pedantic warns on C++11 features which we accept without a
10// warning in C++98 mode.
11
12#line 32767 // ok
13#line 32768 // expected-warning {{#line number greater than 32767 is incompatible with C++98}}
14
15#define VA_MACRO(x, ...) x // expected-warning {{variadic macros are incompatible with C++98}}
16VA_MACRO(,x) // expected-warning {{empty macro arguments are incompatible with C++98}}
17
18; // expected-warning {{extra ';' outside of a function is incompatible with C++98}}
19
20enum Enum {
21  Enum_value, // expected-warning {{commas at the end of enumerator lists are incompatible with C++98}}
22};
23
24template<typename T> struct InstantiationAfterSpecialization {};
25template<> struct InstantiationAfterSpecialization<int> {}; // expected-note {{here}}
26template struct InstantiationAfterSpecialization<int>; // expected-warning {{explicit instantiation of 'InstantiationAfterSpecialization<int>' that occurs after an explicit specialization is incompatible with C++98}}
27
28void *dlsym();
29void (*FnPtr)() = (void(*)())dlsym(); // expected-warning {{cast between pointer-to-function and pointer-to-object is incompatible with C++98}}
30void *FnVoidPtr = (void*)&dlsym; // expected-warning {{cast between pointer-to-function and pointer-to-object is incompatible with C++98}}
31
32struct ConvertToInt {
33  operator int();
34};
35int *ArraySizeConversion = new int[ConvertToInt()];
36#ifdef CXX1Y2
37// expected-warning@-2 {{implicit conversion from array size expression of type 'ConvertToInt' to integral type 'size_t' is incompatible with C++98}}
38#else
39// expected-warning@-4 {{implicit conversion from array size expression of type 'ConvertToInt' to integral type 'int' is incompatible with C++98}}
40#endif
41
42template<typename T> class ExternTemplate {};
43extern template class ExternTemplate<int>; // expected-warning {{extern templates are incompatible with C++98}}
44
45long long ll1 = // expected-warning {{'long long' is incompatible with C++98}}
46         -42LL; // expected-warning {{'long long' is incompatible with C++98}}
47unsigned long long ull1 = // expected-warning {{'long long' is incompatible with C++98}}
48                   42ULL; // expected-warning {{'long long' is incompatible with C++98}}
49
50int k = 0b1001;
51#ifdef CXX1Y
52// expected-warning@-2 {{binary integer literals are incompatible with C++ standards before C++14}}
53#endif
54
55namespace CopyCtorIssues {
56  struct Private {
57    Private();
58  private:
59    Private(const Private&); // expected-note {{declared private here}}
60  };
61  struct NoViable {
62    NoViable();
63    NoViable(NoViable&); // expected-note {{not viable}}
64  };
65  struct Ambiguous {
66    Ambiguous();
67    Ambiguous(const Ambiguous &, int = 0); // expected-note {{candidate}}
68    Ambiguous(const Ambiguous &, double = 0); // expected-note {{candidate}}
69  };
70  struct Deleted {
71    Private p; // expected-note {{implicitly deleted}}
72  };
73
74  const Private &a = Private(); // expected-warning {{copying variable of type 'CopyCtorIssues::Private' when binding a reference to a temporary would invoke an inaccessible constructor in C++98}}
75  const NoViable &b = NoViable(); // expected-warning {{copying variable of type 'CopyCtorIssues::NoViable' when binding a reference to a temporary would find no viable constructor in C++98}}
76#if !CXX98
77  const Ambiguous &c = Ambiguous(); // expected-warning {{copying variable of type 'CopyCtorIssues::Ambiguous' when binding a reference to a temporary would find ambiguous constructors in C++98}}
78#endif
79  const Deleted &d = Deleted(); // expected-warning {{copying variable of type 'CopyCtorIssues::Deleted' when binding a reference to a temporary would invoke a deleted constructor in C++98}}
80}
81