1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 
3 // PR6647
4 class C {
5   // After the error, the rest of the tokens inside the default arg should be
6   // skipped, avoiding a "expected ';' after class" after 'undecl'.
7   void m(int x = undecl + 0); // expected-error {{use of undeclared identifier 'undecl'}}
8 };
9 
10 typedef struct Inst {
11   void m(int x=0);
12 } *InstPtr;
13 
14 struct X {
15   void f(int x = 1:); // expected-error {{unexpected end of default argument expression}}
16 };
17 
18 // PR13657
19 struct T {
20   template <typename A, typename B> struct T1 { enum {V};};
21   template <int A, int B> struct T2 { enum {V}; };
22   template <int, int> static int func(int);
23 
24 
25   void f1(T1<int, int> = T1<int, int>());
26   void f2(T1<int, double> = T1<int, double>(), T2<0, 5> = T2<0, 5>());
27   void f3(int a = T2<0, (T1<int, int>::V > 10) ? 5 : 6>::V, bool b = 4<5 );
28   void f4(bool a = 1 < 0, bool b = 2 > 0 );
29   void f5(bool a = 1 > T2<0, 0>::V, bool b = T1<int,int>::V < 3, int c = 0);
30   void f6(bool a = T2<0,3>::V < 4, bool b = 4 > T2<0,3>::V);
31   void f7(bool a = T1<int, bool>::V < 3);
32   void f8(int = func<0,1<2>(0), int = 1<0, T1<int,int>(int) = 0);
33 };
34 
35 // rdar://18508589
36 struct S {
37   void f(int &r = error);  // expected-error {{use of undeclared identifier 'error'}}
38 };
39 
40 struct U {
iU41   void i(int x = ) {} // expected-error{{expected expression}}
42   typedef int *fp(int x = ); // expected-error{{default arguments can only be specified for parameters in a function declaration}}
43 };
44