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 | |
5 | template<typename T> |
6 | class C { C(int a0 = 0); }; |
7 | |
8 | template<> |
9 | C<char>::C(int a0); |
10 | |
11 | struct S { }; // expected-note 3 {{candidate constructor (the implicit copy constructor)}} |
12 | #if __cplusplus >= 201103L // C++11 or later |
13 | // expected-note@-2 3 {{candidate constructor (the implicit move constructor) not viable}} |
14 | #endif |
15 | |
16 | template<typename T> void f1(T a, T b = 10) { } // expected-error{{no viable conversion}} \ |
17 | // expected-note{{passing argument to parameter 'b' here}} |
18 | |
19 | template<typename T> void f2(T a, T b = T()) { } |
20 | |
21 | template<typename T> void f3(T a, T b = T() + T()); // expected-error{{invalid operands to binary expression ('S' and 'S')}} |
22 | |
23 | void g() { |
24 | f1(10); |
25 | f1(S()); // expected-note{{in instantiation of default function argument expression for 'f1<S>' required here}} |
26 | |
27 | f2(10); |
28 | f2(S()); |
29 | |
30 | f3(10); |
31 | f3(S()); // expected-note{{in instantiation of default function argument expression for 'f3<S>' required here}} |
32 | } |
33 | |
34 | template<typename T> struct F { |
35 | F(T t = 10); // expected-error{{no viable conversion}} \ |
36 | // expected-note{{passing argument to parameter 't' here}} |
37 | void f(T t = 10); // expected-error{{no viable conversion}} \ |
38 | // expected-note{{passing argument to parameter 't' here}} |
39 | }; |
40 | |
41 | struct FD : F<int> { }; |
42 | |
43 | void g2() { |
44 | F<int> f; |
45 | FD fd; |
46 | } |
47 | |
48 | void g3(F<int> f, F<struct S> s) { |
49 | f.f(); |
50 | s.f(); // expected-note{{in instantiation of default function argument expression for 'f<S>' required here}} |
51 | |
52 | F<int> f2; |
53 | F<S> s2; // expected-note{{in instantiation of default function argument expression for 'F<S>' required here}} |
54 | } |
55 | |
56 | template<typename T> struct G { |
57 | G(T) {} |
58 | }; |
59 | |
60 | void s(G<int> flags = 10) { } |
61 | |
62 | // Test default arguments |
63 | template<typename T> |
64 | struct X0 { |
65 | void f(T = T()); // expected-error{{no matching}} |
66 | }; |
67 | |
68 | template<typename U> |
69 | void X0<U>::f(U) { } |
70 | |
71 | void test_x0(X0<int> xi) { |
72 | xi.f(); |
73 | xi.f(17); |
74 | } |
75 | |
76 | struct NotDefaultConstructible { // expected-note 2 {{candidate constructor (the implicit copy constructor) not viable}} |
77 | #if __cplusplus >= 201103L // C++11 or later |
78 | // expected-note@-2 2 {{candidate constructor (the implicit move constructor) not viable}} |
79 | #endif |
80 | NotDefaultConstructible(int); // expected-note 2{{candidate}} |
81 | }; |
82 | |
83 | void test_x0_not_default_constructible(X0<NotDefaultConstructible> xn) { |
84 | xn.f(NotDefaultConstructible(17)); |
85 | xn.f(42); |
86 | xn.f(); // expected-note{{in instantiation of default function argument}} |
87 | } |
88 | |
89 | template<typename T> |
90 | struct X1 { |
91 | typedef T value_type; |
92 | X1(const value_type& value = value_type()); |
93 | }; |
94 | |
95 | void test_X1() { |
96 | X1<int> x1; |
97 | } |
98 | |
99 | template<typename T> |
100 | struct X2 { |
101 | void operator()(T = T()); // expected-error{{no matching}} |
102 | }; |
103 | |
104 | void test_x2(X2<int> x2i, X2<NotDefaultConstructible> x2n) { |
105 | x2i(); |
106 | x2i(17); |
107 | x2n(NotDefaultConstructible(17)); |
108 | x2n(); // expected-note{{in instantiation of default function argument}} |
109 | } |
110 | |
111 | // PR5283 |
112 | namespace PR5283 { |
113 | template<typename T> struct A { |
114 | A(T = 1); // expected-error 3 {{cannot initialize a parameter of type 'int *' with an rvalue of type 'int'}} \ |
115 | // expected-note 3{{passing argument to parameter here}} |
116 | }; |
117 | |
118 | struct B : A<int*> { |
119 | B(); |
120 | }; |
121 | B::B() { } // expected-note {{in instantiation of default function argument expression for 'A<int *>' required he}} |
122 | |
123 | struct C : virtual A<int*> { |
124 | C(); |
125 | }; |
126 | C::C() { } // expected-note {{in instantiation of default function argument expression for 'A<int *>' required he}} |
127 | |
128 | struct D { |
129 | D(); |
130 | |
131 | A<int*> a; |
132 | }; |
133 | D::D() { } // expected-note {{in instantiation of default function argument expression for 'A<int *>' required he}} |
134 | } |
135 | |
136 | // PR5301 |
137 | namespace pr5301 { |
138 | void f(int, int = 0); |
139 | |
140 | template <typename T> |
141 | void g(T, T = 0); |
142 | |
143 | template <int I> |
144 | void i(int a = I); |
145 | |
146 | template <typename T> |
147 | void h(T t) { |
148 | f(0); |
149 | g(1); |
150 | g(t); |
151 | i<2>(); |
152 | } |
153 | |
154 | void test() { |
155 | h(0); |
156 | } |
157 | } |
158 | |
159 | // PR5810 |
160 | namespace PR5810 { |
161 | template<typename T> |
162 | struct allocator { |
163 | allocator() { int a[sizeof(T) ? -1 : -1]; } // expected-error2 {{array with a negative size}} |
164 | }; |
165 | |
166 | template<typename T> |
167 | struct vector { |
168 | vector(const allocator<T>& = allocator<T>()) {} // expected-note2 {{instantiation of}} |
169 | }; |
170 | |
171 | struct A { }; |
172 | struct B { }; |
173 | |
174 | template<typename> |
175 | void FilterVTs() { |
176 | vector<A> Result; |
177 | } |
178 | |
179 | void f() { |
180 | vector<A> Result; |
181 | } |
182 | |
183 | template<typename T> |
184 | struct X { |
185 | vector<B> bs; |
186 | X() { } |
187 | }; |
188 | |
189 | void f2() { |
190 | X<float> x; // expected-note{{member function}} |
191 | } |
192 | } |
193 | |
194 | template<typename T> void f4(T, int = 17); |
195 | template<> void f4<int>(int, int); |
196 | |
197 | void f4_test(int i) { |
198 | f4(i); |
199 | } |
200 | |
201 | // Instantiate for initialization |
202 | namespace InstForInit { |
203 | template<typename T> |
204 | struct Ptr { |
205 | typedef T* type; |
206 | Ptr(type); |
207 | }; |
208 | |
209 | template<typename T> |
210 | struct Holder { |
211 | Holder(int i, Ptr<T> ptr = 0); |
212 | }; |
213 | |
214 | void test_holder(int i) { |
215 | Holder<int> h(i); |
216 | } |
217 | }; |
218 | |
219 | namespace PR5810b { |
220 | template<typename T> |
221 | T broken() { |
222 | T t; |
223 | double**** not_it = t; |
224 | } |
225 | |
226 | void f(int = broken<int>()); |
227 | void g() { f(17); } |
228 | } |
229 | |
230 | namespace PR5810c { |
231 | template<typename T> |
232 | struct X { |
233 | X() { |
234 | T t; |
235 | double *****p = t; // expected-error{{cannot initialize a variable of type 'double *****' with an lvalue of type 'int'}} |
236 | } |
237 | X(const X&) { } |
238 | }; |
239 | |
240 | struct Y : X<int> { // expected-note{{instantiation of}} |
241 | }; |
242 | |
243 | void f(Y y = Y()); |
244 | |
245 | void g() { f(); } |
246 | } |
247 | |
248 | namespace PR8127 { |
249 | template< typename T > class PointerClass { |
250 | public: |
251 | PointerClass( T * object_p ) : p_( object_p ) { |
252 | p_->acquire(); |
253 | } |
254 | private: |
255 | T * p_; |
256 | }; |
257 | |
258 | class ExternallyImplementedClass; |
259 | |
260 | class MyClass { |
261 | void foo( PointerClass<ExternallyImplementedClass> = 0 ); |
262 | }; |
263 | } |
264 | |
265 | namespace rdar8427926 { |
266 | template<typename T> |
267 | struct Boom { |
268 | ~Boom() { |
269 | T t; |
270 | double *******ptr = t; // expected-error 2{{cannot initialize}} |
271 | } |
272 | }; |
273 | |
274 | Boom<float> *bfp; |
275 | |
276 | struct X { |
277 | void f(Boom<int> = Boom<int>()) { } // expected-note{{requested here}} |
278 | void g(int x = (delete bfp, 0)); // expected-note{{requested here}} |
279 | }; |
280 | |
281 | void test(X *x) { |
282 | x->f(); |
283 | x->g(); |
284 | } |
285 | } |
286 | |
287 | namespace PR8401 { |
288 | template<typename T> |
289 | struct A { |
290 | A() { T* x = 1; } // expected-error{{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}} |
291 | }; |
292 | |
293 | template<typename T> |
294 | struct B { |
295 | B(const A<T>& a = A<T>()); // expected-note{{in instantiation of}} |
296 | }; |
297 | |
298 | void f(B<int> b = B<int>()); |
299 | |
300 | void g() { |
301 | f(); |
302 | } |
303 | } |
304 | |
305 | namespace PR12581 { |
306 | const int a = 0; |
307 | template < typename > struct A; |
308 | template < typename MatrixType, int = |
309 | A < MatrixType >::Flags ? : A < MatrixType >::Flags & a > class B; |
310 | void |
311 | fn1 () |
312 | { |
313 | } |
314 | } |
315 | |
316 | namespace PR13758 { |
317 | template <typename T> struct move_from { |
318 | T invalid; |
319 | }; |
320 | template <class K> |
321 | struct unordered_map { |
322 | explicit unordered_map(int n = 42); |
323 | unordered_map(move_from<K> other); |
324 | }; |
325 | template<typename T> |
326 | void StripedHashTable() { |
327 | new unordered_map<void>(); |
328 | new unordered_map<void>; |
329 | } |
330 | void tt() { |
331 | StripedHashTable<int>(); |
332 | } |
333 | } |
334 | |