diff options
Diffstat (limited to 'test/Analysis/complex.c')
| -rw-r--r-- | test/Analysis/complex.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Analysis/complex.c b/test/Analysis/complex.c new file mode 100644 index 0000000..f29fc70 --- /dev/null +++ b/test/Analysis/complex.c @@ -0,0 +1,21 @@ +// RUN: clang-cc -analyze -checker-simple -analyzer-store=basic -analyzer-constraints=basic -verify %s && +// RUN: clang-cc -analyze -checker-cfref -analyzer-store=basic -analyzer-constraints=basic -verify %s && +// RUN: clang-cc -analyze -checker-cfref -analyzer-store=basic -analyzer-constraints=range -verify %s && +// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -analyzer-constraints=basic -verify %s && +// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -analyzer-constraints=range -verify %s + +#include <stdint.h> + +int f1(int * p) { + + // This branch should be infeasible + // because __imag__ p is 0. + if (!p && __imag__ (intptr_t) p) + *p = 1; // no-warning + + // If p != 0 then this branch is feasible; otherwise it is not. + if (__real__ (intptr_t) p) + *p = 1; // no-warning + + *p = 2; // expected-warning{{Dereference of null pointer}} +} |
