| 1 | // RUN: %clang_cc1 -verify -fsyntax-only -triple i386-linux -Wredundant-parens -pedantic-errors -fcxx-exceptions -fexceptions %s |
| 2 | // RUN: %clang_cc1 -verify -fsyntax-only -triple i386-linux -Wredundant-parens -pedantic-errors -fcxx-exceptions -fexceptions -std=c++98 %s |
| 3 | // RUN: %clang_cc1 -verify -fsyntax-only -triple i386-linux -Wredundant-parens -pedantic-errors -fcxx-exceptions -fexceptions -std=c++11 %s |
| 4 | |
| 5 | const char const *x10; // expected-error {{duplicate 'const' declaration specifier}} |
| 6 | |
| 7 | int x(*g); // expected-error {{use of undeclared identifier 'g'}} |
| 8 | |
| 9 | struct Type { |
| 10 | int Type; |
| 11 | }; |
| 12 | |
| 13 | // rdar://8365458 |
| 14 | // rdar://9132143 |
| 15 | typedef char bool; // expected-error {{redeclaration of C++ built-in type 'bool'}} |
| 16 | |
| 17 | // PR4451 - We should recover well from the typo of '::' as ':' in a2. |
| 18 | namespace y { |
| 19 | struct a { }; |
| 20 | typedef int b; |
| 21 | } |
| 22 | |
| 23 | y::a a1; |
| 24 | y:a a2; // expected-error {{unexpected ':' in nested name specifier}} |
| 25 | y::a a3 = a2; |
| 26 | |
| 27 | // Some valid colons: |
| 28 | void foo() { |
| 29 | y: // label |
| 30 | y::a s; |
| 31 | |
| 32 | int a = 4; |
| 33 | a = a ? a : a+1; |
| 34 | } |
| 35 | |
| 36 | struct b : y::a {}; |
| 37 | |
| 38 | template <typename T> |
| 39 | class someclass { |
| 40 | |
| 41 | int bar() { |
| 42 | T *P; |
| 43 | return 1 ? P->x : P->y; |
| 44 | } |
| 45 | }; |
| 46 | |
| 47 | class asm_class_test { |
| 48 | void foo() __asm__("baz"); |
| 49 | }; |
| 50 | |
| 51 | enum { fooenum = 1, }; |
| 52 | #if __cplusplus <= 199711L |
| 53 | // expected-error@-2 {{commas at the end of enumerator lists are a C++11 extension}} |
| 54 | #endif |
| 55 | |
| 56 | struct a { |
| 57 | int Type : fooenum; |
| 58 | }; |
| 59 | |
| 60 | void test(struct Type *P) { |
| 61 | int Type; |
| 62 | Type = 1 ? P->Type : Type; |
| 63 | |
| 64 | Type = (y:b) 4; // expected-error {{unexpected ':' in nested name specifier}} |
| 65 | Type = 1 ? ( |
| 66 | (y:b) // expected-error {{unexpected ':' in nested name specifier}} |
| 67 | 4) : 5; |
| 68 | } |
| 69 | |
| 70 | struct test4 { |
| 71 | int x // expected-error {{expected ';' at end of declaration list}} |
| 72 | int y; |
| 73 | int z // expected-error {{expected ';' at end of declaration list}} |
| 74 | }; |
| 75 | |
| 76 | // Make sure we know these are legitimate commas and not typos for ';'. |
| 77 | namespace Commas { |
| 78 | struct S { |
| 79 | static int a; |
| 80 | int c, |
| 81 | operator()(); |
| 82 | }; |
| 83 | |
| 84 | int global1, |
| 85 | __attribute__(()) global2, |
| 86 | (global5), // expected-warning {{redundant parentheses surrounding declarator}} |
| 87 | *global6, |
| 88 | &global7 = global1, |
| 89 | &&global8 = static_cast<int&&>(global1), |
| 90 | #if __cplusplus <= 199711L |
| 91 | // expected-error@-2 2{{rvalue references are a C++11 extension}} |
| 92 | #endif |
| 93 | |
| 94 | S::a, |
| 95 | global9, |
| 96 | global10 = 0, |
| 97 | global11 == 0, // expected-error {{did you mean '='}} |
| 98 | global12 __attribute__(()), |
| 99 | global13(0), |
| 100 | global14[2], |
| 101 | global15; |
| 102 | |
| 103 | void g() { |
| 104 | static int a, |
| 105 | b __asm__("ebx"), // expected-error {{expected ';' at end of declaration}} |
| 106 | Statics:return; |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | // PR5825 |
| 111 | struct test5 {}; |
| 112 | ::new(static_cast<void*>(0)) test5; // expected-error {{expected unqualified-id}} |
| 113 | |
| 114 | |
| 115 | // PR6782 |
| 116 | template<class T> |
| 117 | class Class1; |
| 118 | |
| 119 | class Class2 { |
| 120 | } // expected-error {{expected ';' after class}} |
| 121 | |
| 122 | typedef Class1<Class2> Type1; |
| 123 | |
| 124 | // rdar : // 8307865 |
| 125 | struct CodeCompleteConsumer { |
| 126 | }; |
| 127 | |
| 128 | void CodeCompleteConsumer::() { // expected-error {{xpected unqualified-id}} |
| 129 | } |
| 130 | |
| 131 | ; |
| 132 | |
| 133 | // PR4111 |
| 134 | void f(sqrgl); // expected-error {{unknown type name 'sqrgl'}} |
| 135 | |
| 136 | // PR9903 |
| 137 | struct S { |
| 138 | typedef void a() { }; // expected-error {{function definition declared 'typedef'}} |
| 139 | typedef void c() try { } catch(...) { } // expected-error {{function definition declared 'typedef'}} |
| 140 | int n, m; |
| 141 | typedef S() : n(1), m(2) { } // expected-error {{function definition declared 'typedef'}} |
| 142 | }; |
| 143 | |
| 144 | |
| 145 | namespace TestIsValidAfterTypeSpecifier { |
| 146 | struct s {} v; |
| 147 | |
| 148 | namespace a { |
| 149 | struct s operator++(struct s a) |
| 150 | { return a; } |
| 151 | } |
| 152 | |
| 153 | namespace b { |
| 154 | // The newline after s should make no difference. |
| 155 | struct s |
| 156 | operator++(struct s a) |
| 157 | { return a; } |
| 158 | } |
| 159 | |
| 160 | struct X { |
| 161 | struct s |
| 162 | friend f(); |
| 163 | struct s |
| 164 | virtual f(); |
| 165 | }; |
| 166 | |
| 167 | struct s |
| 168 | &r0 = v; |
| 169 | struct s |
| 170 | bitand r2 = v; |
| 171 | |
| 172 | } |
| 173 | |
| 174 | struct DIE { |
| 175 | void foo() {} |
| 176 | }; |
| 177 | |
| 178 | void test (DIE die, DIE *Die, DIE INT, DIE *FLOAT) { |
| 179 | DIE.foo(); // expected-error {{cannot use dot operator on a type}} |
| 180 | die.foo(); |
| 181 | |
| 182 | DIE->foo(); // expected-error {{cannot use arrow operator on a type}} |
| 183 | Die->foo(); |
| 184 | |
| 185 | int.foo(); // expected-error {{cannot use dot operator on a type}} |
| 186 | INT.foo(); |
| 187 | |
| 188 | float->foo(); // expected-error {{cannot use arrow operator on a type}} |
| 189 | FLOAT->foo(); |
| 190 | } |
| 191 | |
| 192 | namespace PR15017 { |
| 193 | template<typename T = struct X { int i; }> struct S {}; // expected-error {{'PR15017::X' cannot be defined in a type specifier}} |
| 194 | } |
| 195 | |
| 196 | // Ensure we produce at least some diagnostic for attributes in C++98. |
| 197 | [[]] struct S; |
| 198 | #if __cplusplus <= 199711L |
| 199 | // expected-error@-2 {{expected expression}} |
| 200 | // expected-error@-3 {{expected unqualified-id}} |
| 201 | #else |
| 202 | // expected-error@-5 {{misplaced attributes}} |
| 203 | #endif |
| 204 | |
| 205 | namespace test7 { |
| 206 | struct Foo { |
| 207 | void a(); |
| 208 | void b(); |
| 209 | }; |
| 210 | |
| 211 | void Foo:: |
| 212 | // Comment! |
| 213 | a() {} |
| 214 | |
| 215 | |
| 216 | void Foo:: // expected-error {{expected unqualified-id}} |
| 217 | // Comment! |
| 218 | } |
| 219 | |
| 220 | void test8() { |
| 221 | struct {} o; |
| 222 | // This used to crash. |
| 223 | (&o)->(); // expected-error{{expected unqualified-id}} |
| 224 | } |
| 225 | |
| 226 | namespace PR5066 { |
| 227 | template<typename T> struct X {}; |
| 228 | X<int N> x; // expected-error {{type-id cannot have a name}} |
| 229 | |
| 230 | using T = int (*T)(); // expected-error {{type-id cannot have a name}} |
| 231 | #if __cplusplus <= 199711L |
| 232 | // expected-error@-2 {{alias declarations are a C++11 extensio}} |
| 233 | #endif |
| 234 | |
| 235 | } |
| 236 | |
| 237 | namespace PR17255 { |
| 238 | void foo() { |
| 239 | typename A::template B<>; // expected-error {{use of undeclared identifier 'A'}} |
| 240 | // expected-error@-1 {{'template' keyword not permitted here}} |
| 241 | #if __cplusplus <= 199711L |
| 242 | // expected-error@-3 {{'template' keyword outside of a template}} |
| 243 | #endif |
| 244 | // expected-error@-5 {{expected a qualified name after 'typename'}} |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | namespace PR17567 { |
| 249 | struct Foobar { // expected-note 2{{declared here}} |
| 250 | FooBar(); // expected-error {{missing return type for function 'FooBar'; did you mean the constructor name 'Foobar'?}} |
| 251 | ~FooBar(); // expected-error {{expected the class name after '~' to name a destructor}} |
| 252 | }; |
| 253 | FooBar::FooBar() {} // expected-error {{undeclared}} expected-error {{missing return type}} |
| 254 | FooBar::~FooBar() {} // expected-error {{undeclared}} expected-error {{expected the class name}} |
| 255 | } |
| 256 | |
| 257 | namespace DuplicateFriend { |
| 258 | struct A { |
| 259 | friend void friend f(); // expected-warning {{duplicate 'friend' declaration specifier}} |
| 260 | friend struct B friend; // expected-warning {{duplicate 'friend' declaration specifier}} |
| 261 | #if __cplusplus >= 201103L |
| 262 | // expected-error@-2 {{'friend' must appear first in a non-function declaration}} |
| 263 | #endif |
| 264 | }; |
| 265 | } |
| 266 | |
| 267 | namespace NNS { |
| 268 | struct A {}; |
| 269 | namespace B { extern A C1, C2, *C3, C4[], C5; } |
| 270 | // Do not produce a redundant parentheses warning here; removing these parens |
| 271 | // changes the meaning of the program. |
| 272 | A (::NNS::B::C1); |
| 273 | A (NNS::B::C2); // expected-warning {{redundant parentheses surrounding declarator}} |
| 274 | A (*::NNS::B::C3); // expected-warning {{redundant parentheses surrounding declarator}} |
| 275 | A (::NNS::B::C4[2]); |
| 276 | // Removing one of these sets of parentheses would be reasonable. |
| 277 | A ((::NNS::B::C5)); // expected-warning {{redundant parentheses surrounding declarator}} |
| 278 | |
| 279 | void f() { |
| 280 | // FIXME: A vexing-parse warning here would be useful. |
| 281 | A(::NNS::B::C1); // expected-error {{definition or redeclaration}} |
| 282 | A(NNS::B::C1); // expected-warning {{redundant paren}} expected-error {{definition or redeclaration}} |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | inline namespace ParensAroundFriend { // expected-error 0-1{{C++11}} |
| 287 | struct A {}; |
| 288 | struct B { |
| 289 | static A C(); |
| 290 | }; |
| 291 | namespace X { |
| 292 | struct B {}; |
| 293 | struct D { |
| 294 | // No warning here: while this could be written as |
| 295 | // friend (::B::C)(); |
| 296 | // we do need parentheses *somewhere* here. |
| 297 | friend A (::B::C()); |
| 298 | }; |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | namespace rdar37099386 { |
| 303 | class A typename A; // expected-error {{expected a qualified name after 'typename'}} |
| 304 | // expected-error@-1 {{cannot combine with previous 'class' declaration specifier}} |
| 305 | } |
| 306 | |
| 307 | // PR8380 |
| 308 | extern "" // expected-error {{unknown linkage language}} |
| 309 | test6a { ;// expected-error {{C++ requires a type specifier for all declarations}} |
| 310 | #if __cplusplus <= 199711L |
| 311 | // expected-error@-2 {{expected ';' after top level declarator}} |
| 312 | #else |
| 313 | // expected-error@-4 {{expected expression}} |
| 314 | // expected-note@-5 {{to match this}} |
| 315 | #endif |
| 316 | |
| 317 | int test6b; |
| 318 | #if __cplusplus >= 201103L |
| 319 | // expected-error@+3 {{expected}} |
| 320 | // expected-error@-3 {{expected ';' after top level declarator}} |
| 321 | #endif |
| 322 | |
| 323 | |