| 1 | // RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s |
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| 2 | |
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| 3 | #define nil (void *)0; |
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| 4 | #define Nil (void *)0; |
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| 5 | |
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| 6 | extern void foo(); |
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| 7 | |
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| 8 | @protocol MyProtocol |
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| 9 | - (void) method; |
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| 10 | @end |
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| 11 | |
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| 12 | @interface MyClass |
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| 13 | @end |
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| 14 | |
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| 15 | int main() |
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| 16 | { |
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| 17 | id obj = nil; |
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| 18 | id <MyProtocol> obj_p = nil; |
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| 19 | MyClass *obj_c = nil; |
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| 20 | Class obj_C = Nil; |
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| 21 | |
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| 22 | int i = 0; |
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| 23 | int *j = nil; |
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| 24 | |
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| 25 | /* These should all generate warnings. */ |
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| 26 | |
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| 27 | obj = i; // expected-warning {{incompatible integer to pointer conversion assigning to 'id' from 'int'}} |
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| 28 | obj = j; // expected-warning {{incompatible pointer types assigning to 'id' from 'int *'}} |
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| 29 | |
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| 30 | obj_p = i; // expected-warning {{incompatible integer to pointer conversion assigning to 'id<MyProtocol>' from 'int'}} |
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| 31 | obj_p = j; // expected-warning {{incompatible pointer types assigning to 'id<MyProtocol>' from 'int *'}} |
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| 32 | |
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| 33 | obj_c = i; // expected-warning {{incompatible integer to pointer conversion assigning to 'MyClass *' from 'int'}} |
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| 34 | obj_c = j; // expected-warning {{incompatible pointer types assigning to 'MyClass *' from 'int *'}} |
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| 35 | |
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| 36 | obj_C = i; // expected-warning {{incompatible integer to pointer conversion assigning to 'Class' from 'int'}} |
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| 37 | obj_C = j; // expected-warning {{incompatible pointer types assigning to 'Class' from 'int *'}} |
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| 38 | |
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| 39 | i = obj; // expected-warning {{incompatible pointer to integer conversion assigning to 'int' from 'id'}} |
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| 40 | i = obj_p; // expected-warning {{incompatible pointer to integer conversion assigning to 'int' from 'id<MyProtocol>'}} |
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| 41 | i = obj_c; // expected-warning {{incompatible pointer to integer conversion assigning to 'int' from 'MyClass *'}} |
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| 42 | i = obj_C; // expected-warning {{incompatible pointer to integer conversion assigning to 'int' from 'Class'}} |
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| 43 | |
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| 44 | j = obj; // expected-warning {{incompatible pointer types assigning to 'int *' from 'id'}} |
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| 45 | j = obj_p; // expected-warning {{incompatible pointer types assigning to 'int *' from 'id<MyProtocol>'}} |
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| 46 | j = obj_c; // expected-warning {{incompatible pointer types assigning to 'int *' from 'MyClass *'}} |
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| 47 | j = obj_C; // expected-warning {{incompatible pointer types assigning to 'int *' from 'Class'}} |
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| 48 | |
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| 49 | if (obj == i) foo() ; // expected-warning {{comparison between pointer and integer ('id' and 'int')}} |
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| 50 | if (i == obj) foo() ; // expected-warning {{comparison between pointer and integer ('int' and 'id')}} |
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| 51 | if (obj == j) foo() ; // expected-warning {{comparison of distinct pointer types ('id' and 'int *')}} |
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| 52 | if (j == obj) foo() ; // expected-warning {{comparison of distinct pointer types ('int *' and 'id')}} |
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| 53 | |
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| 54 | if (obj_c == i) foo() ; // expected-warning {{comparison between pointer and integer ('MyClass *' and 'int')}} |
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| 55 | if (i == obj_c) foo() ; // expected-warning {{comparison between pointer and integer ('int' and 'MyClass *')}} |
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| 56 | if (obj_c == j) foo() ; // expected-warning {{comparison of distinct pointer types ('MyClass *' and 'int *')}} |
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| 57 | if (j == obj_c) foo() ; // expected-warning {{comparison of distinct pointer types ('int *' and 'MyClass *')}} |
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| 58 | |
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| 59 | if (obj_p == i) foo() ; // expected-warning {{comparison between pointer and integer ('id<MyProtocol>' and 'int')}} |
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| 60 | if (i == obj_p) foo() ; // expected-warning {{comparison between pointer and integer ('int' and 'id<MyProtocol>')}} |
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| 61 | if (obj_p == j) foo() ; // expected-warning {{comparison of distinct pointer types ('id<MyProtocol>' and 'int *')}} |
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| 62 | if (j == obj_p) foo() ; // expected-warning {{comparison of distinct pointer types ('int *' and 'id<MyProtocol>')}} |
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| 63 | |
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| 64 | if (obj_C == i) foo() ; // expected-warning {{comparison between pointer and integer ('Class' and 'int')}} |
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| 65 | if (i == obj_C) foo() ; // expected-warning {{comparison between pointer and integer ('int' and 'Class')}} |
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| 66 | if (obj_C == j) foo() ; // expected-warning {{comparison of distinct pointer types ('Class' and 'int *')}} |
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| 67 | if (j == obj_C) foo() ; // expected-warning {{comparison of distinct pointer types ('int *' and 'Class')}} |
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| 68 | |
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| 69 | Class bar1 = Nil; |
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| 70 | Class <MyProtocol> bar = Nil; |
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| 71 | bar = bar1; |
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| 72 | bar1 = bar; |
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| 73 | |
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| 74 | return 0; |
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| 75 | } |
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| 76 | |
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