std::format

Macro std::format

macro_rules! format {
    ( $ ( $ arg : tt ) * ) => { ... };
}

Use the syntax described in std::fmt to create a value of type String. See std::fmt for more information.

Panics

format! panics if a formatting trait implementation returns an error. This indicates an incorrect implementation since fmt::Write for String never returns an error itself.

Examples

format!("test");
format!("hello {}", "world!");
format!("x = {}, y = {y}", 10, y = 30);