src/tools/clippy/src/docs/cmp_null.txt


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### What it does
This lint checks for equality comparisons with `ptr::null`

### Why is this bad?
It's easier and more readable to use the inherent
`.is_null()`
method instead

### Example
```
use std::ptr;

if x == ptr::null {
    // ..
}
```

Use instead:
```
if x.is_null() {
    // ..
}
```