### What it does
Catch casts from `0` to some pointer type

### Why is this bad?
This generally means `null` and is better expressed as
{`std`, `core`}`::ptr::`{`null`, `null_mut`}.

### Example
```
let a = 0 as *const u32;
```

Use instead:
```
let a = std::ptr::null::<u32>();
```