Function default_u32

pub const fn default_u32<const V: u32>() -> u32

Allows compact setting u32 field default value.

Example

use serde_aux::prelude::*;

#[derive(serde::Deserialize, Debug)]
struct MyStruct {
    #[serde(default = "default_u32::<30>")]
    default_30: u32,
    #[serde(default)]
    default_zero: u32,
}

let s = r#"{}"#;
let a: MyStruct = serde_json::from_str(s).unwrap();
assert_eq!(a.default_30, 30);
assert_eq!(a.default_zero, 0);