struct-compat.c revision 08a41901e18aeb91b87d031b93df70374af02564
1/* RUN: %clang_cc1 %s -fsyntax-only -pedantic -verify 2 */ 3 4extern struct {int a;} x; // expected-note {{previous definition is here}} 5extern struct {int a;} x; // expected-error {{redefinition of 'x'}} 6 7struct x; 8int a(struct x* b) { 9// Per C99 6.7.2.3, since the outer and inner "struct x"es have different 10// scopes, they don't refer to the same type, and are therefore incompatible 11struct x {int a;} *c = b; // expected-warning {{incompatible pointer types}} 12} 13 14struct x {int a;} r; 15int b() { 16struct x {char x;} s = r; // expected-error {{initializing 'struct x' with an expression of incompatible type 'struct x'}} 17} 18