| Dominic Chen | 184c624 | 2017-03-03 18:02:02 +0000 | [diff] [blame] | 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core.NullDereference -analyzer-output=text -fno-caret-diagnostics %s 2>&1 | FileCheck %s |
| Jordan Rose | 367843a | 2013-08-16 01:06:30 +0000 | [diff] [blame] | 2 | |
| 3 | void testA() { |
| 4 | int *p = 0; |
| 5 | *p = 1; |
| 6 | |
| 7 | // CHECK-LABEL: text-diagnostics.c:{{.*}}:6: warning: Dereference of null pointer (loaded from variable 'p') |
| 8 | // CHECK-NEXT: text-diagnostics.c:[[@LINE-4]]:3: note: 'p' initialized to a null pointer value |
| 9 | // CHECK-NEXT: text-diagnostics.c:[[@LINE-4]]:6: note: Dereference of null pointer (loaded from variable 'p') |
| 10 | } |
| 11 | |
| 12 | void testB(int *q) { |
| 13 | if (q) |
| 14 | return; |
| 15 | *q = 1; |
| 16 | |
| 17 | // CHECK-LABEL: text-diagnostics.c:{{.*}}:6: warning: Dereference of null pointer (loaded from variable 'q') |
| 18 | // CHECK-NEXT: text-diagnostics.c:[[@LINE-5]]:7: note: Assuming 'q' is null |
| 19 | // CHECK-NEXT: text-diagnostics.c:[[@LINE-6]]:3: note: Taking false branch |
| 20 | // CHECK-NEXT: text-diagnostics.c:[[@LINE-5]]:6: note: Dereference of null pointer (loaded from variable 'q') |
| 21 | } |