aformat

A no-std and no-alloc version of format! using ToArrayString.

Read the documentation via cargo doc --open --no-deps or on docs.rs.

Minimum Supported Rust Version

This is currently 1.79, and is considered a breaking change to increase.

Credits

• @danielhenrymantilla, aka yandros, for providing much of the tricks needed to implement this on stable.
• Everyone who has contributed to typenum, again for stable compatiblity.
• The rustc developers, who unknowingly stablized enough features for this to work.

lib.rs:

A no-std and no-alloc version of format! using ToArrayString.

Example

use aformat::{astr, aformat, CapStr};

pub fn say_hello(name: &str, age: u8) {
    let name = CapStr::<256>(name);

    let formatted = aformat!("Hello {name}, you are {age} years old!");
    println!("{}", formatted.as_str());
}

say_hello("Walter White", 50);

Minimum Supported Rust Version

This is currently 1.79, and is considered a breaking change to increase.