1// RUN: %clang_cc1 %s -fsyntax-only -fblocks -verify -Wno-unreachable-code 2 3Class test1(Class X) { 4 return 1 ? X : X; 5} 6 7void test2(void) { 8 id str = @"foo" 9 "bar\0" // no-warning 10 @"baz" " blarg"; 11 id str2 = @"foo" 12 "bar" 13 @"baz" 14 " b\0larg"; // no-warning 15 16 17 if (@encode(int) == "foo") { } // expected-warning {{result of comparison against @encode is unspecified}} 18} 19 20#define MAX(A,B) ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __b : __a; }) 21void (^foo)(int, int) = ^(int x, int y) { int z = MAX(x, y); }; 22 23@class Object; 24static Object *g; 25void test3(Object *o) { 26 // this is ok. 27 __sync_bool_compare_and_swap(&g, 0, o); 28} 29 30@class Incomplete_ObjC_class; // expected-note{{forward declaration of class here}} 31struct Incomplete_struct; // expected-note {{forward declaration}} 32 33void test_encode(void) { 34 (void)@encode(Incomplete_ObjC_class); // expected-error {{incomplete type}} 35 (void)@encode(struct Incomplete_struct); // expected-error {{incomplete type}} 36 (void)@encode(Incomplete_ObjC_class*); 37 (void)@encode(id); 38} 39