"Tautological pointer comparison" build failure(s)
clang 3.4.2
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 |
|---|
| hidrd | 0.2.0-11 | page.h:225:14: error: comparison of constant 65280 with expression of type 'hidrd_usage_page' (aka 'enum hidrd_usage_page') is always false [-Werror,-Wtautological-constant-out-of-range-compare]
| Log |
|
| libdvbpsi | 1.2.0-1 | test_dr.c:49:3: error: comparison of constant 12 with expression of type 'bool' is always true [-Werror,-Wtautological-constant-out-of-range-compare]
| Log |
|
| open-vm-tools | 2:9.4.0-1280544-8 | hgfsServer.c:5630:30: error: comparison of constant 255 with expression of type 'HgfsOp' is always false [-Werror,-Wtautological-constant-out-of-range-compare]
| Log |
|
| spout | 1.4-2 | spout.c:982:25: error: comparison of constant 128 with expression of type 'char' is always true [-Werror,-Wtautological-constant-out-of-range-compare]
| Log |
812249
|
4 errors
