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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/lint/lint-deref-nullptr.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/lint/lint-deref-nullptr.rs')
-rw-r--r-- | tests/ui/lint/lint-deref-nullptr.rs | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/tests/ui/lint/lint-deref-nullptr.rs b/tests/ui/lint/lint-deref-nullptr.rs new file mode 100644 index 000000000..d052dbd9b --- /dev/null +++ b/tests/ui/lint/lint-deref-nullptr.rs @@ -0,0 +1,38 @@ +// test the deref_nullptr lint + +#![deny(deref_nullptr)] + +use std::ptr; + +struct Struct { + field: u8, +} + +fn f() { + unsafe { + let a = 1; + let ub = *(a as *const i32); + let ub = *(0 as *const i32); + //~^ ERROR dereferencing a null pointer + let ub = *ptr::null::<i32>(); + //~^ ERROR dereferencing a null pointer + let ub = *ptr::null_mut::<i32>(); + //~^ ERROR dereferencing a null pointer + let ub = *(ptr::null::<i16>() as *const i32); + //~^ ERROR dereferencing a null pointer + let ub = *(ptr::null::<i16>() as *mut i32 as *mut usize as *const u8); + //~^ ERROR dereferencing a null pointer + let ub = &*ptr::null::<i32>(); + //~^ ERROR dereferencing a null pointer + let ub = &*ptr::null_mut::<i32>(); + //~^ ERROR dereferencing a null pointer + ptr::addr_of!(*ptr::null::<i32>()); + //~^ ERROR dereferencing a null pointer + ptr::addr_of_mut!(*ptr::null_mut::<i32>()); + //~^ ERROR dereferencing a null pointer + let offset = ptr::addr_of!((*ptr::null::<Struct>()).field); + //~^ ERROR dereferencing a null pointer + } +} + +fn main() {} |