.TH lib 3erl "stdlib 3.4.5" "Ericsson AB" "Erlang Module Definition"
.SH NAME
lib \- Useful library functions.
.SH DESCRIPTION
.LP

.RS -4
.B
Warning:
.RE
This module is retained for backward compatibility\&. It can disappear without warning in a future Erlang/OTP release\&.

.SH EXPORTS
.LP
.nf

.B
error_message(Format, Args) -> ok
.br
.fi
.br
.RS
.LP
Types:

.RS 3
Format = \fBio:format()\fR\&
.br
Args = [term()]
.br
.RE
.RE
.RS
.LP
Prints error message \fIArgs\fR\& in accordance with \fIFormat\fR\&\&. Similar to \fB\fIio:format/2\fR\&\fR\&\&.
.RE

.LP
.nf

.B
flush_receive() -> ok
.br
.fi
.br
.RS
.LP
Flushes the message buffer of the current process\&.
.RE

.LP
.nf

.B
nonl(String1) -> String2
.br
.fi
.br
.RS
.LP
Types:

.RS 3
String1 = String2 = string()
.br
.RE
.RE
.RS
.LP
Removes the last newline character, if any, in \fIString1\fR\&\&.
.RE

.LP
.nf

.B
progname() -> atom()
.br
.fi
.br
.RS
.LP
Returns the name of the script that started the current Erlang session\&.
.RE

.LP
.nf

.B
send(To, Msg) -> Msg
.br
.fi
.br
.RS
.LP
Types:

.RS 3
To = pid() | atom() | {atom(), node()}
.br
Msg = term()
.br
.RE
.RE
.RS
.LP
Makes it possible to send a message using the \fIapply/3\fR\& BIF\&.
.RE

.LP
.nf

.B
sendw(To, Msg) -> term()
.br
.fi
.br
.RS
.LP
Types:

.RS 3
To = pid() | atom() | {atom(), node()}
.br
Msg = term()
.br
.RE
.RE
.RS
.LP
As \fB\fIsend/2\fR\&\fR\&, but waits for an answer\&. It is implemented as follows:
.LP
.nf

sendw(To, Msg) ->
    To ! {self(),Msg},
    receive
        Reply -> Reply
    end.
.fi
.LP
The returned message is not necessarily a reply to the sent message\&.
.RE