write

syslib

Function write 

Source 
pub fn write<'a, 'b, F: AsRef<Fd<'b>>>(
    fd: F,
    buffer: &[u8],
) -> Result<usize, Error>
Expand description

Write a slice of bytes to a file. The number of bytes successfully written is returned.

Examples found in repository?
examples/hello_world.rs (line 4)
3pub fn main() {
4    write(Fd::stdout, "Hello, World!\n".as_bytes()).unwrap();
5}
More examples
Hide additional examples
examples/notepad.rs (line 7)
5fn main() {
6    let mut buffer = [0; 4096];
7    write(Fd::stdout, "File: ".as_bytes()).unwrap();
8    let path = read(Fd::stdin, &mut buffer).unwrap();
9    let path = std::path::Path::new(std::ffi::OsStr::from_bytes(path.strip_suffix(b"\n").unwrap()));
10    let fd = open(path, open::Flags::CREATE | open::Flags::WRITE_ONLY, mode!(rw_ ___ ___)).unwrap();
11    loop {
12        let data = read(Fd::stdin, &mut buffer).unwrap();
13        if data == b"\x1b\n" { break }
14        if write(&fd, data).unwrap() == 0 {
15            break
16        }
17    }
18}