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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
commit | 4f9fe856a25ab29345b90e7725509e9ee38a37be (patch) | |
tree | e4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /tests/ui/suggest-null-ptr.fixed | |
parent | Adding upstream version 1.68.2+dfsg1. (diff) | |
download | rustc-upstream/1.69.0+dfsg1.tar.xz rustc-upstream/1.69.0+dfsg1.zip |
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/ui/suggest-null-ptr.fixed | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/suggest-null-ptr.fixed b/tests/ui/suggest-null-ptr.fixed new file mode 100644 index 000000000..40f900c7d --- /dev/null +++ b/tests/ui/suggest-null-ptr.fixed @@ -0,0 +1,31 @@ +// run-rustfix + +// Suggest providing a std::ptr::null{,_mut}() to a function that takes in a raw +// pointer if a literal 0 was provided by the user. + +extern "C" { + fn foo(ptr: *const u8); + + fn foo_mut(ptr: *mut u8); + + fn usize(ptr: *const usize); + + fn usize_mut(ptr: *mut usize); +} + +fn main() { + unsafe { + foo(std::ptr::null()); + //~^ mismatched types [E0308] + //~| if you meant to create a null pointer, use `std::ptr::null()` + foo_mut(std::ptr::null_mut()); + //~^ mismatched types [E0308] + //~| if you meant to create a null pointer, use `std::ptr::null_mut()` + usize(std::ptr::null()); + //~^ mismatched types [E0308] + //~| if you meant to create a null pointer, use `std::ptr::null()` + usize_mut(std::ptr::null_mut()); + //~^ mismatched types [E0308] + //~| if you meant to create a null pointer, use `std::ptr::null_mut()` + } +} |