"Tautological pointer comparison" build failure(s)
clang 9.0.1
Incorrect code...
#include
void foo() {
int arr[5];
int x;
// warn on these conditionals
if (foo);
if (arr);
if (&x);
if (foo == NULL);
if (arr == NULL);
if (&x == NULL);
}
void f(int &x) {
if (&x == nullptr) { }
}
gcc with -Wall also detects some of these errors but not the one involving NULL.
| Package | Version | Supposed error message | Full log |
Bug report |
|---|
| cups-bjnp | 2.0.3-1 | bjnp-commands.c:188:9: error: comparison of array 'printer_id' not equal to a null pointer is always true [-Werror,-Wtautological-pointer-compare]
| Log |
|
| w1retap | 1.4.4-3 | weather.c:382:13: error: comparison of array 'wet->ds2401' equal to a null pointer is always false [-Werror,-Wtautological-pointer-compare]
| Log |
|
2 errors
