RS.CLIPPY.CMP_NULL

Comparing a pointer to a null pointer, suggesting to use `.is_null()` instead

This checker is a Clippy lint created by The Rust Project Contributors. The documentation shown here is a copy of the original documentation for: cmp_null. Copyright ©2025 The Rust Team. All rights reserved.

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() {
    // ..
}