1 // RUN: %clang_cc1 -fsyntax-only -Wunused-variable -fblocks -verify %s 2 3 struct s0 { 4 unsigned int i; 5 }; 6 7 int proto(int a, int b); 8 9 void f0(void) { 10 int a __attribute__((unused)), 11 b; // expected-warning{{unused}} 12 return; 13 } 14 15 void f1(void) { 16 int i; 17 (void)sizeof(i); 18 return; 19 } 20 21 // PR5933 22 int f2() { 23 int X = 4; // Shouldn't have a bogus 'unused variable X' warning. 24 return Y + X; // expected-error {{use of undeclared identifier 'Y'}} 25 } 26 27 int f3() { 28 int X1 = 4; 29 (void)(Y1 + X1); // expected-error {{use of undeclared identifier 'Y1'}} 30 (void)(^() { int X = 4; }); // expected-warning{{unused}} 31 (void)(^() { int X = 4; return Y + X; }); // expected-error {{use of undeclared identifier 'Y'}} 32 } 33
