1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
2 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s |
3 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
4 | int f(double); // expected-note{{candidate function}} |
5 | int f(int); // expected-note{{candidate function}} |
6 | |
7 | int (*pfd)(double) = f; // selects f(double) |
8 | int (*pfd2)(double) = &f; // selects f(double) |
9 | int (*pfd3)(double) = ((&((f)))); // selects f(double) |
10 | int (*pfi)(int) = &f; // selects f(int) |
11 | // FIXME: This error message is not very good. We need to keep better |
12 | // track of what went wrong when the implicit conversion failed to |
13 | // give a better error message here. |
14 | int (*pfe)(...) = &f; // expected-error{{address of overloaded function 'f' does not match required type 'int (...)'}} |
15 | int (&rfi)(int) = f; // selects f(int) |
16 | int (&rfd)(double) = f; // selects f(double) |
17 | |
18 | void g(int (*fp)(int)); // expected-note{{candidate function}} |
19 | void g(int (*fp)(float)); |
20 | void g(int (*fp)(double)); // expected-note{{candidate function}} |
21 | |
22 | int g1(int); |
23 | int g1(char); |
24 | |
25 | int g2(int); |
26 | int g2(double); |
27 | |
28 | template<typename T> T g3(T); |
29 | int g3(int); |
30 | int g3(char); |
31 | |
32 | void g_test() { |
33 | g(g1); |
34 | g(g2); // expected-error{{call to 'g' is ambiguous}} |
35 | g(g3); |
36 | } |
37 | |
38 | template<typename T> T h1(T); |
39 | template<typename R, typename A1> R h1(A1); |
40 | int h1(char); |
41 | |
42 | void ha(int (*fp)(int)); |
43 | void hb(int (*fp)(double)); |
44 | |
45 | void h_test() { |
46 | ha(h1); |
47 | hb(h1); |
48 | } |
49 | |
50 | struct A { }; |
51 | void f(void (*)(A *)); |
52 | |
53 | struct B |
54 | { |
55 | void g() { f(d); } |
56 | void d(void *); |
57 | static void d(A *); |
58 | }; |
59 | |
60 | struct C { |
61 | C &getC() { |
62 | return makeAC; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}} |
63 | } |
64 | |
65 | // FIXME: filter by const so we can unambiguously suggest '()' & point to just the one candidate, probably |
66 | C &makeAC(); // expected-note{{possible target for call}} |
67 | const C &makeAC() const; // expected-note{{possible target for call}} |
68 | |
69 | static void f(); // expected-note{{candidate function}} |
70 | static void f(int); // expected-note{{candidate function}} |
71 | |
72 | void g() { |
73 | int (&fp)() = f; // expected-error{{address of overloaded function 'f' does not match required type 'int ()'}} |
74 | } |
75 | |
76 | template<typename T> |
77 | void q1(int); // expected-note{{possible target for call}} |
78 | template<typename T> |
79 | void q2(T t = T()); // expected-note{{possible target for call}} |
80 | template<typename T> |
81 | void q3(); // expected-note{{possible target for call}} |
82 | template<typename T1, typename T2> |
83 | void q4(); // expected-note{{possible target for call}} |
84 | template<typename T1 = int> |
85 | #if __cplusplus <= 199711L // C++03 or earlier modes |
86 | // expected-warning@-2{{default template arguments for a function template are a C++11 extension}} |
87 | #endif |
88 | void q5(); // expected-note{{possible target for call}} |
89 | |
90 | void h() { |
91 | // Do not suggest '()' since an int argument is required |
92 | q1<int>; // expected-error-re{{reference to non-static member function must be called{{$}}}} |
93 | // Suggest '()' since there's a default value for the only argument & the |
94 | // type argument is already provided |
95 | q2<int>; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}} |
96 | // Suggest '()' since no arguments are required & the type argument is |
97 | // already provided |
98 | q3<int>; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}} |
99 | // Do not suggest '()' since another type argument is required |
100 | q4<int>; // expected-error-re{{reference to non-static member function must be called{{$}}}} |
101 | // Suggest '()' since the type parameter has a default value |
102 | q5; // expected-error{{reference to non-static member function must be called; did you mean to call it with no arguments?}} |
103 | } |
104 | }; |
105 | |
106 | // PR6886 |
107 | namespace test0 { |
108 | void myFunction(void (*)(void *)); |
109 | |
110 | class Foo { |
111 | void foo(); |
112 | |
113 | static void bar(void*); |
114 | static void bar(); |
115 | }; |
116 | |
117 | void Foo::foo() { |
118 | myFunction(bar); |
119 | } |
120 | } |
121 | |
122 | namespace PR7971 { |
123 | struct S { |
124 | void g() { |
125 | f(&g); |
126 | } |
127 | void f(bool (*)(int, char)); |
128 | static bool g(int, char); |
129 | }; |
130 | } |
131 | |
132 | namespace PR8033 { |
133 | template <typename T1, typename T2> int f(T1 *, const T2 *); // expected-note {{candidate function [with T1 = const int, T2 = int]}} |
134 | template <typename T1, typename T2> int f(const T1 *, T2 *); // expected-note {{candidate function [with T1 = int, T2 = const int]}} |
135 | int (*p)(const int *, const int *) = f; // expected-error{{address of overloaded function 'f' is ambiguous}} |
136 | } |
137 | |
138 | namespace PR8196 { |
139 | template <typename T> struct mcdata { |
140 | typedef int result_type; |
141 | }; |
142 | template <class T> |
143 | typename mcdata<T>::result_type wrap_mean(mcdata<T> const&); |
144 | void add_property(double(*)(mcdata<double> const &)); // expected-note{{candidate function not viable: no overload of 'wrap_mean' matching}} |
145 | void f() { |
146 | add_property(&wrap_mean); // expected-error{{no matching function for call to 'add_property'}} |
147 | } |
148 | } |
149 | |
150 | namespace PR7425 { |
151 | template<typename T> |
152 | void foo() |
153 | { |
154 | } |
155 | |
156 | struct B |
157 | { |
158 | template<typename T> |
159 | B(const T&) |
160 | { |
161 | } |
162 | }; |
163 | |
164 | void bar(const B& b) |
165 | { |
166 | } |
167 | |
168 | void bar2(const B& b = foo<int>) |
169 | { |
170 | } |
171 | |
172 | void test(int argc, char** argv) |
173 | { |
174 | bar(foo<int>); |
175 | bar2(); |
176 | } |
177 | } |
178 | |
179 | namespace test1 { |
180 | void fun(int x) {} |
181 | |
182 | void parameter_number() { |
183 | void (*ptr1)(int, int) = &fun; // expected-error {{cannot initialize a variable of type 'void (*)(int, int)' with an rvalue of type 'void (*)(int)': different number of parameters (2 vs 1)}} |
184 | void (*ptr2)(int, int); |
185 | ptr2 = &fun; // expected-error {{assigning to 'void (*)(int, int)' from incompatible type 'void (*)(int)': different number of parameters (2 vs 1)}} |
186 | } |
187 | |
188 | void parameter_mismatch() { |
189 | void (*ptr1)(double) = &fun; // expected-error {{cannot initialize a variable of type 'void (*)(double)' with an rvalue of type 'void (*)(int)': type mismatch at 1st parameter ('double' vs 'int')}} |
190 | void (*ptr2)(double); |
191 | ptr2 = &fun; // expected-error {{assigning to 'void (*)(double)' from incompatible type 'void (*)(int)': type mismatch at 1st parameter ('double' vs 'int')}} |
192 | } |
193 | |
194 | void return_type_test() { |
195 | int (*ptr1)(int) = &fun; // expected-error {{cannot initialize a variable of type 'int (*)(int)' with an rvalue of type 'void (*)(int)': different return type ('int' vs 'void')}} |
196 | int (*ptr2)(int); |
197 | ptr2 = &fun; // expected-error {{assigning to 'int (*)(int)' from incompatible type 'void (*)(int)': different return type ('int' vs 'void')}} |
198 | } |
199 | |
200 | int foo(double x, double y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}} |
201 | int foo(int x, int y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}} |
202 | int foo(double x) {return 0;} // expected-note {{candidate function has type mismatch at 1st parameter (expected 'int' but has 'double')}} |
203 | double foo(float x, float y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}} |
204 | double foo(int x, float y) {return 0;} // expected-note {{candidate function has different number of parameters (expected 1 but has 2)}} |
205 | double foo(float x) {return 0;} // expected-note {{candidate function has type mismatch at 1st parameter (expected 'int' but has 'float')}} |
206 | double foo(int x) {return 0;} // expected-note {{candidate function has different return type ('int' expected but has 'double')}} |
207 | |
208 | int (*ptr)(int) = &foo; // expected-error {{address of overloaded function 'foo' does not match required type 'int (int)'}} |
209 | |
210 | struct Qualifiers { |
211 | void N() {}; |
212 | void C() const {}; |
213 | void V() volatile {}; |
214 | void R() __restrict {}; |
215 | void CV() const volatile {}; |
216 | void CR() const __restrict {}; |
217 | void VR() volatile __restrict {}; |
218 | void CVR() const volatile __restrict {}; |
219 | }; |
220 | |
221 | |
222 | void QualifierTest() { |
223 | void (Qualifiers::*X)(); |
224 | X = &Qualifiers::C; // expected-error-re {{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} const': different qualifiers (unqualified vs 'const')}} |
225 | X = &Qualifiers::V; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} volatile': different qualifiers (unqualified vs 'volatile')}} |
226 | X = &Qualifiers::R; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} __restrict': different qualifiers (unqualified vs '__restrict')}} |
227 | X = &Qualifiers::CV; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} const volatile': different qualifiers (unqualified vs 'const volatile')}} |
228 | X = &Qualifiers::CR; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} const __restrict': different qualifiers (unqualified vs 'const __restrict')}} |
229 | X = &Qualifiers::VR; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} volatile __restrict': different qualifiers (unqualified vs 'volatile __restrict')}} |
230 | X = &Qualifiers::CVR; // expected-error-re{{assigning to 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' from incompatible type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}} const volatile __restrict': different qualifiers (unqualified vs 'const volatile __restrict')}} |
231 | } |
232 | |
233 | struct Dummy { |
234 | void N() {}; |
235 | }; |
236 | |
237 | void (Qualifiers::*X)() = &Dummy::N; // expected-error-re{{cannot initialize a variable of type 'void (test1::Qualifiers::*)(){{( __attribute__\(\(thiscall\)\))?}}' with an rvalue of type 'void (test1::Dummy::*)(){{( __attribute__\(\(thiscall\)\))?}}': different classes ('test1::Qualifiers' vs 'test1::Dummy')}} |
238 | } |
239 | |
240 | template <typename T> class PR16561 { |
241 | virtual bool f() { if (f) {} return false; } // expected-error {{reference to non-static member function must be called}} |
242 | }; |
243 | |