Ted Kremenek | ff7c538 | 2007-11-24 20:07:36 +0000 | [diff] [blame] | 1 | // RUN: clang -warn-uninit-values -verify %s |
| 2 | |
| 3 | int f1() { |
| 4 | int x; |
| 5 | return x; // expected-warning{use of uninitialized variable} |
| 6 | } |
| 7 | |
| 8 | int f2(int x) { |
| 9 | int y; |
| 10 | int z = x + y; // expected-warning {use of uninitialized variable} |
| 11 | return z; |
| 12 | } |
| 13 | |
| 14 | |
| 15 | int f3(int x) { |
| 16 | int y; |
| 17 | return x ? 1 : y; // expected-warning {use of uninitialized variable} |
| 18 | } |
| 19 | |
| 20 | int f4(int x) { |
| 21 | int y; |
| 22 | if (x) y = 1; |
| 23 | return y; // no-warning |
| 24 | } |
| 25 | |
| 26 | int f5() { |
| 27 | int a; |
| 28 | a = 30; // no-warning |
| 29 | } |
Ted Kremenek | ca7aa1f | 2007-11-24 23:06:58 +0000 | [diff] [blame] | 30 | |
| 31 | void f6(int i) { |
| 32 | int x; |
| 33 | for (i = 0 ; i < 10; i++) |
| 34 | printf("%d",x++); // expected-warning {use of uninitialized variable} |
| 35 | } |
| 36 | |
| 37 | void f7(int i) { |
| 38 | int x = i; |
| 39 | int y; |
| 40 | for (i = 0; i < 10; i++ ) { |
| 41 | printf("%d",x++); // no-warning |
| 42 | x += y; // expected-warning {use of uninitialized variable} |
| 43 | } |
| 44 | } |