| Ted Kremenek | b8e26e6 | 2008-06-19 17:55:38 +0000 | [diff] [blame^] | 1 | // RUN: clang -checker-simple -verify %s |
| 2 | |||||
| 3 | #include <stdlib.h> | ||||
| 4 | |||||
| 5 | int f1(int * p) { | ||||
| 6 | |||||
| 7 | // This branch should be infeasible | ||||
| 8 | // because __imag__ p is 0. | ||||
| 9 | if (!p && __imag__ (intptr_t) p) | ||||
| 10 | *p = 1; // no-warning | ||||
| 11 | |||||
| 12 | // If p != 0 then this branch is feasible; otherwise it is not. | ||||
| 13 | if (__real__ (intptr_t) p) | ||||
| 14 | *p = 1; // no-warning | ||||
| 15 | |||||
| 16 | *p = 2; // expected-warning{{Dereference of null pointer}} | ||||
| 17 | } | ||||