| 1 | // RUN: %clang_cc1 -Wno-int-to-pointer-cast -fsyntax-only -verify -pedantic-errors %s |
| 2 | // RUN: %clang_cc1 -Wno-int-to-pointer-cast -fsyntax-only -verify -pedantic-errors -std=gnu++98 %s |
| 3 | // RUN: %clang_cc1 -Wno-int-to-pointer-cast -fsyntax-only -verify -pedantic-errors -std=gnu++11 %s |
| 4 | // RUN: %clang_cc1 -Wno-int-to-pointer-cast -fsyntax-only -verify -pedantic-errors -x objective-c++ %s |
| 5 | |
| 6 | void f() { |
| 7 | int a; |
| 8 | struct S { int m; }; |
| 9 | typedef S *T; |
| 10 | |
| 11 | // Expressions. |
| 12 | T(a)->m = 7; |
| 13 | int(a)++; // expected-error {{assignment to cast is illegal}} |
| 14 | __extension__ int(a)++; // expected-error {{assignment to cast is illegal}} |
| 15 | __typeof(int)(a,5)<<a; // expected-error {{excess elements in scalar initializer}} |
| 16 | void(a), ++a; |
| 17 | if (int(a)+1) {} |
| 18 | for (int(a)+1;;) {} // expected-warning {{expression result unused}} |
| 19 | a = sizeof(int()+1); |
| 20 | a = sizeof(int(1)); |
| 21 | typeof(int()+1) a2; // expected-error {{extension used}} |
| 22 | (int(1)); // expected-warning {{expression result unused}} |
| 23 | |
| 24 | // type-id |
| 25 | (int())1; // expected-error {{C-style cast from 'int' to 'int ()' is not allowed}} |
| 26 | |
| 27 | // Declarations. |
| 28 | int fd(T(a)); // expected-warning {{disambiguated as a function declaration}} expected-note{{add a pair of parentheses}} |
| 29 | T(*d)(int(p)); // expected-note {{previous}} |
| 30 | typedef T td(int(p)); |
| 31 | extern T tp(int(p)); |
| 32 | T d3(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}} |
| 33 | T d3v(void); |
| 34 | typedef T d3t(); |
| 35 | extern T f3(); |
| 36 | __typeof(*T()) f4(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}} |
| 37 | typedef void *V; |
| 38 | __typeof(*V()) f5(); // expected-error {{ISO C++ does not allow indirection on operand of type 'V' (aka 'void *')}} |
| 39 | T multi1, |
| 40 | multi2(); // expected-warning {{empty parentheses interpreted as a function declaration}} expected-note {{replace parentheses with an initializer}} |
| 41 | T(d)[5]; // expected-error {{redefinition of 'd'}} |
| 42 | typeof(int[])(f) = { 1, 2 }; // expected-error {{extension used}} |
| 43 | void(b)(int); |
| 44 | int(d2) __attribute__(()); |
| 45 | if (int(a)=1) {} |
| 46 | int(d3(int())); |
| 47 | } |
| 48 | |
| 49 | struct RAII { |
| 50 | RAII(); |
| 51 | RAII(int); |
| 52 | ~RAII(); |
| 53 | }; |
| 54 | |
| 55 | struct NotRAII { |
| 56 | NotRAII(); |
| 57 | NotRAII(int); |
| 58 | }; |
| 59 | |
| 60 | void func(); |
| 61 | void func2(short); |
| 62 | namespace N { |
| 63 | struct S; |
| 64 | int n; |
| 65 | |
| 66 | void emptyParens() { |
| 67 | RAII raii(); // expected-warning {{function declaration}} expected-note {{remove parentheses to declare a variable}} |
| 68 | int a, b, c, d, e, // expected-note {{change this ',' to a ';' to call 'func'}} |
| 69 | func(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}} |
| 70 | |
| 71 | S s(); // expected-warning {{function declaration}} |
| 72 | #if __cplusplus >= 201103L |
| 73 | // expected-note@-2 {{replace parentheses with an initializer to declare a variable}} |
| 74 | #endif |
| 75 | } |
| 76 | void nonEmptyParens() { |
| 77 | int f = 0, // g = 0; expected-note {{change this ',' to a ';' to call 'func2'}} |
| 78 | func2(short(f)); // expected-warning {{function declaration}} expected-note {{add a pair of parentheses}} |
| 79 | |
| 80 | RAII(n); // expected-warning {{parentheses were disambiguated as redundant parentheses around declaration of variable named 'n'}} |
| 81 | // expected-note@-1 {{add a variable name to declare a 'RAII' initialized with 'n'}} |
| 82 | // expected-note@-2 {{add enclosing parentheses to perform a function-style cast}} |
| 83 | // expected-note@-3 {{remove parentheses to silence this warning}} |
| 84 | |
| 85 | RAII(undeclared1); |
| 86 | #pragma clang diagnostic push |
| 87 | #pragma clang diagnostic warning "-Wredundant-parens" |
| 88 | RAII(undeclared2); // expected-warning {{redundant parentheses surrounding declarator}} |
| 89 | #pragma clang diagnostic pop |
| 90 | |
| 91 | { |
| 92 | NotRAII(n); // expected-warning {{parentheses were disambiguated as redundant parentheses around declaration of variable named 'n'}} |
| 93 | // expected-note@-1 {{add enclosing parentheses to perform a function-style cast}} |
| 94 | // expected-note@-2 {{remove parentheses to silence this warning}} |
| 95 | } |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | class C { }; |
| 100 | void fn(int(C)) { } // void fn(int(*fp)(C c)) { } expected-note{{candidate function}} |
| 101 | // not: void fn(int C); |
| 102 | int g(C); |
| 103 | |
| 104 | void foo() { |
| 105 | fn(1); // expected-error {{no matching function}} |
| 106 | fn(g); // OK |
| 107 | } |
| 108 | |
| 109 | namespace PR11874 { |
| 110 | void foo(); // expected-note 3 {{class 'foo' is hidden by a non-type declaration of 'foo' here}} |
| 111 | class foo {}; |
| 112 | class bar { |
| 113 | bar() { |
| 114 | const foo* f1 = 0; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}} |
| 115 | foo* f2 = 0; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}} |
| 116 | foo f3; // expected-error {{must use 'class' tag to refer to type 'foo' in this scope}} |
| 117 | } |
| 118 | }; |
| 119 | |
| 120 | int baz; // expected-note 2 {{class 'baz' is hidden by a non-type declaration of 'baz' here}} |
| 121 | class baz {}; |
| 122 | void fizbin() { |
| 123 | const baz* b1 = 0; // expected-error {{must use 'class' tag to refer to type 'baz' in this scope}} |
| 124 | baz* b2; // expected-error {{use of undeclared identifier 'b2'}} |
| 125 | baz b3; // expected-error {{must use 'class' tag to refer to type 'baz' in this scope}} |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | namespace TemporaryFromFunctionCall { |
| 130 | struct A { |
| 131 | A(int); |
| 132 | }; |
| 133 | int f(); |
| 134 | int g(int); |
| 135 | namespace N { |
| 136 | void x() { |
| 137 | // FIXME: For the first and second of these (but not the third), we |
| 138 | // should produce a vexing-parse warning. |
| 139 | A(f()); |
| 140 | A(g(int())); |
| 141 | A(g(int)); |
| 142 | } |
| 143 | } |
| 144 | } |
| 145 | |