RS.CLIPPY.TO_DIGIT_IS_SOME

`char.is_digit()` is clearer

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

What it does

Checks for .to_digit(..).is_some() on chars.

Why is this bad?

This is a convoluted way of checking if a char is a digit. It's more straight forward to use the dedicated is_digit method.

Example

let is_digit = c.to_digit(radix).is_some();

can be written as:

let is_digit = c.is_digit(radix);

Configuration

  • msrv: The minimum rust version that the project supports. Defaults to the rust-version field in Cargo.toml

    (default: current version)