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1// RUN: %clang_cc1 -fsyntax-only -verify %s2 3@compatibility_alias alias4 foo; // expected-warning {{cannot find interface declaration for 'foo'}}4 5@class class2; // expected-note {{previous declaration is here}}6@class class3;7 8typedef int I; // expected-note {{previous declaration is here}}9 10@compatibility_alias alias1 I; // expected-warning {{cannot find interface declaration for 'I'}}11 12@compatibility_alias alias class2; 13@compatibility_alias alias class3; // expected-error {{conflicting types for alias 'alias'}}14 15 16typedef int alias2; // expected-note {{previous declaration is here}}17@compatibility_alias alias2 class3; // expected-error {{conflicting types for alias 'alias2'}}18 19alias *p;20class2 *p2;21 22int foo (void)23{24 25 if (p == p2) {26 int alias = 1;27 }28 29 alias *p3;30 return p3 == p2;31}32