1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
// RUN: %clang_cc1 -Wno-uninitialized -std=c++11 -verify %s
template<int> struct c { c(int) = delete; typedef void val; operator int() const; };
int val;
int foobar;
struct S {
int k1 = a < b < c, d > ::val, e1;
int k2 = a < b, c < d > ::val, e2;
int k3 = b < a < c, d > ::val, e3;
int k4 = b < c, x, y = d > ::val, e4;
int k5 = T1 < b, &S::operator=(int); // expected-error {{extra qualification}}
int k6 = T2 < b, &S::operator= >::val;
int k7 = T1 < b, &S::operator>(int); // expected-error {{extra qualification}}
int k8 = T2 < b, &S::operator> >::val;
int k9 = T3 < a < b, c >> (d), e5 = 1 > (e4);
int k10 = 0 < T3 < a < b, c >> (d
) // expected-error {{expected ';' at end of declaration}}
, a > (e4);
int k11 = 0 < 1, c<3>::*ptr;
int k12 = e < 0, int a<b<c>::* >(), e11;
void f1(
int k1 = a < b < c, d > ::val,
int k2 = b < a < c, d > ::val,
int k3 = b < c, int x = 0 > ::val,
int k4 = a < b, T3 < int > >(), // expected-error {{must be an expression}}
int k5 = a < b, c < d > ::val,
int k6 = a < b, c < d > (n) // expected-error {{undeclared identifier 'n'}}
);
void f2a(
// T3<int> here is a parameter type, so must be declared before it is used.
int k1 = c < b, T3 < int > x = 0 // expected-error {{no template named 'T3'}}
);
template<typename, int=0> struct T3 { T3(int); operator int(); };
void f2b(
int k1 = c < b, T3 < int > x = 0 // ok
);
// This is a one-parameter function. Ensure we don't typo-correct it to
// int = a < b, c < foobar > ()
// ... which would be a function with two parameters.
int f3(int = a < b, c < goobar > ());
static constexpr int (S::*f3_test)(int) = &S::f3;
void f4(
int k1 = a<1,2>::val,
int missing_default // expected-error {{missing default argument on parameter}}
);
void f5(
int k1 = b < c,
int missing_default // expected-error {{missing default argument on parameter}}
);
void f6(
int k = b < c,
unsigned int (missing_default) // expected-error {{missing default argument on parameter}}
);
template<int, int=0> struct a { static const int val = 0; operator int(); }; // expected-note {{here}}
static const int b = 0, c = 1, d = 2, goobar = 3;
template<int, typename> struct e { operator int(); };
int mp1 = 0 < 1,
a<b<c,b<c>::*mp2,
mp3 = 0 > a<b<c>::val,
a<b<c,b<c>::*mp4 = 0,
a<b<c,b<c>::*mp5 {0},
a<b<c,b<c>::*mp6;
int np1 = e<0, int a<b<c,b<c>::*>();
static const int T1 = 4;
template<int, int &(S::*)(int)> struct T2 { static const int val = 0; };
};
namespace NoAnnotationTokens {
template<bool> struct Bool { Bool(int); };
static const bool in_class = false;
struct Test {
// Check we don't keep around a Bool<false> annotation token here.
int f(Bool<true> = X<Y, Bool<in_class> >(0));
// But it's OK if we do here.
int g(Bool<true> = Z<Y, Bool<in_class> = Bool<false>(0));
static const bool in_class = true;
template<int, typename U> using X = U;
static const int Y = 0, Z = 0;
};
}
namespace ImplicitInstantiation {
template<typename T> struct HasError { typename T::error error; }; // expected-error {{has no members}}
struct S {
// This triggers the instantiation of the outer HasError<int> during
// disambiguation, even though it uses the inner HasError<int>.
void f(int a = X<Y, HasError<int>::Z >()); // expected-note {{in instantiation of}}
template<typename, typename> struct X { operator int(); };
typedef int Y;
template<typename> struct HasError { typedef int Z; };
};
HasError<int> hei;
}
namespace CWG325 {
template <int A, typename B> struct T { static int i; operator int(); };
class C {
int Foo (int i = T<1, int>::i);
};
class D {
int Foo (int i = T<1, int>::i);
template <int A, typename B> struct T {static int i;};
};
const int a = 0;
typedef int b;
T<a,b> c;
struct E {
int n = T<a,b>(c);
};
}
namespace Operators {
struct Y {};
constexpr int operator,(const Y&, const Y&) { return 8; }
constexpr int operator>(const Y&, const Y&) { return 8; }
constexpr int operator<(const Y&, const Y&) { return 8; }
constexpr int operator>>(const Y&, const Y&) { return 8; }
struct X {
typedef int (*Fn)(const Y&, const Y&);
Fn a = operator,, b = operator<, c = operator>;
void f(Fn a = operator,, Fn b = operator<, Fn c = operator>);
int k1 = T1<0, operator<, operator>, operator<>::val, l1;
int k2 = T1<0, operator>, operator,, operator,>::val, l2;
int k3 = T2<0, operator,(Y{}, Y{}), operator<(Y{}, Y{})>::val, l3;
int k4 = T2<0, operator>(Y{}, Y{}), operator,(Y{}, Y{})>::val, l4;
int k5 = T3<0, operator>>>::val, l5;
int k6 = T4<0, T3<0, operator>>>>::val, l6;
template<int, Fn, Fn, Fn> struct T1 { enum { val }; };
template<int, int, int> struct T2 { enum { val }; };
template<int, Fn> struct T3 { enum { val }; };
template<int, typename T> struct T4 : T {};
};
}
namespace ElaboratedTypeSpecifiers {
struct S {
int f(int x = T<a, struct S>());
int h(int x = T<a, union __attribute__(()) U>());
int i(int x = T<a, enum E>());
int j(int x = T<a, struct S::template T<0, enum E>>());
template <int, typename> struct T { operator int(); };
static const int a = 0;
enum E {};
};
}
namespace PR20459 {
template <typename EncTraits> struct A {
void foo(int = EncTraits::template TypeEnc<int, int>::val); // ok
};
}
|
