/* Test assignments and comparisons between protocols (obscure case). */
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/* Test assignments and comparisons between protocols (obscure case). */
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/* Author: Nicola Pero . */
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/* Author: Nicola Pero . */
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/* { dg-do compile } */
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/* { dg-do compile } */
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#include
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#include
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@protocol MyProtocolA
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@protocol MyProtocolA
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- (void) methodA;
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- (void) methodA;
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@end
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@end
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@protocol MyProtocolB
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@protocol MyProtocolB
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- (void) methodB;
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- (void) methodB;
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@end
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@end
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@protocol MyProtocolAB
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@protocol MyProtocolAB
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@end
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@end
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@protocol MyProtocolAC
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@protocol MyProtocolAC
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- (void) methodC;
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- (void) methodC;
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@end
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@end
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int main()
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int main()
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{
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{
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id obj_a = nil;
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id obj_a = nil;
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id obj_b = nil;
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id obj_b = nil;
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id obj_ab = nil;
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id obj_ab = nil;
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id obj_ac = nil;
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id obj_ac = nil;
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obj_a = obj_b; /* { dg-warning "does not conform" } */
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obj_a = obj_b; /* { dg-warning "does not conform" } */
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obj_a = obj_ab; /* Ok */
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obj_a = obj_ab; /* Ok */
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obj_a = obj_ac; /* Ok */
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obj_a = obj_ac; /* Ok */
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obj_b = obj_a; /* { dg-warning "does not conform" } */
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obj_b = obj_a; /* { dg-warning "does not conform" } */
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obj_b = obj_ab; /* Ok */
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obj_b = obj_ab; /* Ok */
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obj_b = obj_ac; /* { dg-warning "does not conform" } */
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obj_b = obj_ac; /* { dg-warning "does not conform" } */
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obj_ab = obj_a; /* { dg-warning "does not conform" } */
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obj_ab = obj_a; /* { dg-warning "does not conform" } */
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obj_ab = obj_b; /* { dg-warning "does not conform" } */
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obj_ab = obj_b; /* { dg-warning "does not conform" } */
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obj_ab = obj_ac; /* { dg-warning "does not conform" } */
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obj_ab = obj_ac; /* { dg-warning "does not conform" } */
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obj_ac = obj_a; /* { dg-warning "does not conform" } */
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obj_ac = obj_a; /* { dg-warning "does not conform" } */
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obj_ac = obj_b; /* { dg-warning "does not conform" } */
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obj_ac = obj_b; /* { dg-warning "does not conform" } */
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obj_ac = obj_ab; /* { dg-warning "does not conform" } */
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obj_ac = obj_ab; /* { dg-warning "does not conform" } */
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if (obj_a == obj_b) ; /* { dg-warning "lacks a cast" } */
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if (obj_a == obj_b) ; /* { dg-warning "lacks a cast" } */
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if (obj_b == obj_a) ; /* { dg-warning "lacks a cast" } */
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if (obj_b == obj_a) ; /* { dg-warning "lacks a cast" } */
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if (obj_a == obj_ab) ; /* Ok */
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if (obj_a == obj_ab) ; /* Ok */
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if (obj_ab == obj_a) ; /* Ok */ /* Spurious 2.95.4 warning here */
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if (obj_ab == obj_a) ; /* Ok */ /* Spurious 2.95.4 warning here */
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if (obj_a == obj_ac) ; /* Ok */
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if (obj_a == obj_ac) ; /* Ok */
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if (obj_ac == obj_a) ; /* Ok */ /* Spurious 2.95.4 warning here */
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if (obj_ac == obj_a) ; /* Ok */ /* Spurious 2.95.4 warning here */
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if (obj_b == obj_ab) ; /* Ok */
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if (obj_b == obj_ab) ; /* Ok */
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if (obj_ab == obj_b) ; /* Ok */ /* Spurious 2.95.4 warning here */
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if (obj_ab == obj_b) ; /* Ok */ /* Spurious 2.95.4 warning here */
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if (obj_b == obj_ac) ; /* { dg-warning "lacks a cast" } */
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if (obj_b == obj_ac) ; /* { dg-warning "lacks a cast" } */
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if (obj_ac == obj_b) ; /* { dg-warning "lacks a cast" } */
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if (obj_ac == obj_b) ; /* { dg-warning "lacks a cast" } */
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if (obj_ab == obj_ac) ; /* { dg-warning "lacks a cast" } */
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if (obj_ab == obj_ac) ; /* { dg-warning "lacks a cast" } */
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if (obj_ac == obj_ab) ; /* { dg-warning "lacks a cast" } */
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if (obj_ac == obj_ab) ; /* { dg-warning "lacks a cast" } */
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return 0;
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return 0;
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}
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}
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