diff options
Diffstat (limited to 'test/Sema/warn-null.c')
| -rw-r--r-- | test/Sema/warn-null.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/Sema/warn-null.c b/test/Sema/warn-null.c new file mode 100644 index 0000000..28fb6a5 --- /dev/null +++ b/test/Sema/warn-null.c @@ -0,0 +1,11 @@ +// RUN: %clang_cc1 %s -verify + +// PR10837: Warn if a non-pointer-typed expression is folded to a null pointer +int *p = 0; +int *q = '\0'; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}} +int *r = (1 - 1); // expected-warning{{expression which evaluates to zero treated as a null pointer constant}} +void f() { + p = 0; + q = '\0'; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}} + r = 1 - 1; // expected-warning{{expression which evaluates to zero treated as a null pointer constant}} +} |
