1// RUN: %clang_cc1 -fsyntax-only -fblocks %s -verify 2 3#define SUPPRESS1 __attribute__((suppress)) 4#define SUPPRESS2(...) __attribute__((suppress(__VA_ARGS__))) 5 6SUPPRESS1 int global = 42; 7 8SUPPRESS1 void foo() { 9 SUPPRESS1 int *p; // no-warning 10 11 SUPPRESS1 int a = 0; // no-warning 12 SUPPRESS2() 13 int b = 1; // no-warning 14 SUPPRESS2("a") 15 int c = a + b; // no-warning 16 SUPPRESS2("a", "b") { b = c - a; } // no-warning 17 18 SUPPRESS2("a", "b") 19 if (b == 10) 20 a += 4; // no-warning 21 SUPPRESS1 while (1) {} // no-warning 22 SUPPRESS1 switch (a) { // no-warning 23 default: 24 c -= 10; 25 } 26 27 // GNU-style attributes and C++11 attributes apply to different things when 28 // written like this. GNU attribute gets attached to the declaration, while 29 // C++11 attribute ends up on the type. 30 int SUPPRESS2("r") z; // no-warning 31 SUPPRESS2(foo) // no-warning 32 float f; 33 // expected-error@-2 {{expected string literal as argument of 'suppress' attribute}} 34} 35 36union SUPPRESS2("type.1") U { // no-warning 37 int i; 38 float f; 39}; 40 41SUPPRESS1 @interface Test { // no-warning 42} 43@property SUPPRESS2("prop") int *prop; // no-warning 44- (void)bar:(int)x SUPPRESS1; // no-warning 45@end 46