(slib.info)Standard Formatted I/O

stdio
-----

  `(require 'stdio)'

  `require's `printf' and `scanf' and additionally defines the symbols:

 - Variable: stdin
     Defined to be `(current-input-port)'.

 - Variable: stdout
     Defined to be `(current-output-port)'.

 - Variable: stderr
     Defined to be `(current-error-port)'.