Function wasmtime_environ::__core::fmt::write
1.0.0 · source · pub fn write(output: &mut dyn Write, args: Arguments<'_>) -> Result<(), Error>
Expand description
The write
function takes an output stream, and an Arguments
struct
that can be precompiled with the format_args!
macro.
The arguments will be formatted according to the specified format string into the output stream provided.
Examples
Basic usage:
use std::fmt;
let mut output = String::new();
fmt::write(&mut output, format_args!("Hello {}!", "world"))
.expect("Error occurred while trying to write in String");
assert_eq!(output, "Hello world!");
Please note that using write!
might be preferable. Example:
use std::fmt::Write;
let mut output = String::new();
write!(&mut output, "Hello {}!", "world")
.expect("Error occurred while trying to write in String");
assert_eq!(output, "Hello world!");