lib(3)

NAME
lib - Useful library functions.

DESCRIPTION

    Warning:
This module is retained for backward compatibility. It can disappear without warning in a future Erlang/OTP release.

EXPORTS

error_message(Format, Args) -> ok

    Types:
        Format = io:format()
        Args = [term()]

    Prints error message Args in accordance with Format. Similar to io:format/2.

flush_receive() -> ok

    Flushes the message buffer of the current process.

nonl(String1) -> String2

    Types:
        String1 = String2 = string()

    Removes the last newline character, if any, in String1.

progname() -> atom()

    Returns the name of the script that started the current Erlang session.

send(To, Msg) -> Msg

    Types:
        To = pid() | atom() | {atom(), node()}
        Msg = term()

    Makes it possible to send a message using the apply/3 BIF.

sendw(To, Msg) -> term()

    Types:
        To = pid() | atom() | {atom(), node()}
        Msg = term()

    As send/2, but waits for an answer. It is implemented as follows:

    sendw(To, Msg) ->
        To ! {self(),Msg},
        receive
            Reply -> Reply
        end.

    The returned message is not necessarily a reply to the sent message.