std::io

std::io provides basic stdin/stdout/stderr I/O and a small formatting surface (print/println).

Full reference: io.

Notes#

• Design + implementation: basic reads/writes are implemented via std::runtime::io.
• Full reference: io

Importing#

import std::io;

Examples#

Example: formatted printing#

import std::io;

fn main () -> int {
  std::io::println("hello {s} answer={d}", "world", 42);
  return 0;
}

See also#

• Full reference: io
• Format strings: fmt
• Runtime backend: runtime