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Diffstat (limited to '')
-rw-r--r-- | src/tools/clippy/tests/ui/ptr_eq.rs | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/ptr_eq.rs b/src/tools/clippy/tests/ui/ptr_eq.rs new file mode 100644 index 000000000..691628708 --- /dev/null +++ b/src/tools/clippy/tests/ui/ptr_eq.rs @@ -0,0 +1,38 @@ +// run-rustfix +#![warn(clippy::ptr_eq)] + +macro_rules! mac { + ($a:expr, $b:expr) => { + $a as *const _ as usize == $b as *const _ as usize + }; +} + +macro_rules! another_mac { + ($a:expr, $b:expr) => { + $a as *const _ == $b as *const _ + }; +} + +fn main() { + let a = &[1, 2, 3]; + let b = &[1, 2, 3]; + + let _ = a as *const _ as usize == b as *const _ as usize; + let _ = a as *const _ == b as *const _; + let _ = a.as_ptr() == b as *const _; + let _ = a.as_ptr() == b.as_ptr(); + + // Do not lint + + let _ = mac!(a, b); + let _ = another_mac!(a, b); + + let a = &mut [1, 2, 3]; + let b = &mut [1, 2, 3]; + + let _ = a.as_mut_ptr() == b as *mut [i32] as *mut _; + let _ = a.as_mut_ptr() == b.as_mut_ptr(); + + let _ = a == b; + let _ = core::ptr::eq(a, b); +} |