Macro std::fmt::format_in

macro format_in($buf, $fmt_str, $arg/* ... */) { ... }

source

Format a string into a preexisting buffer.

Returns an error if the buffer is not large enough.

Example

use std::fmt::format_in;

let buf: [u8; 64];
let f = format_in!(&buf, "{} + {} = {}", 1, 2, 3).unwrap();

assert_eq!(f, "1 + 2 = 3");
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