33 lines
1000 B
Rust
33 lines
1000 B
Rust
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#![warn(clippy::cmp_null)]
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#![allow(unused_mut)]
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use std::ptr;
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fn main() {
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let x = 0;
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let p: *const usize = &x;
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if p.is_null() {
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//~^ ERROR: comparing with null is better expressed by the `.is_null()` method
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//~| NOTE: `-D clippy::cmp-null` implied by `-D warnings`
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println!("This is surprising!");
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}
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if p.is_null() {
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//~^ ERROR: comparing with null is better expressed by the `.is_null()` method
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println!("This is surprising!");
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}
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let mut y = 0;
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let mut m: *mut usize = &mut y;
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if m.is_null() {
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//~^ ERROR: comparing with null is better expressed by the `.is_null()` method
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println!("This is surprising, too!");
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}
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if m.is_null() {
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//~^ ERROR: comparing with null is better expressed by the `.is_null()` method
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println!("This is surprising, too!");
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}
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let _ = (x as *const ()).is_null();
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//~^ ERROR: comparing with null is better expressed by the `.is_null()` method
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}
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