<?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE erlref SYSTEM "erlref.dtd"> <erlref> <header> <copyright> <year>1996</year><year>2013</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> The contents of this file are subject to the Erlang Public License, Version 1.1, (the "License"); you may not use this file except in compliance with the License. You should have received a copy of the Erlang Public License along with this software. If not, it can be retrieved online at http://www.erlang.org/. Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. </legalnotice> <title>lib</title> <prepared></prepared> <docno></docno> <date></date> <rev></rev> </header> <module>lib</module> <modulesummary>A number of useful library functions</modulesummary> <description> <warning> <p>This module is retained for compatibility. It may disappear without warning in a future release.</p> </warning> </description> <funcs> <func> <name name="flush_receive" arity="0"/> <fsummary>Flush messages</fsummary> <desc> <p>Flushes the message buffer of the current process.</p> </desc> </func> <func> <name name="error_message" arity="2"/> <fsummary>Print error message</fsummary> <desc> <p>Prints error message <c><anno>Args</anno></c> in accordance with <c><anno>Format</anno></c>. Similar to <c>io:format/2</c>, see <seealso marker="io#fwrite/1">io(3)</seealso>.</p> </desc> </func> <func> <name name="progname" arity="0"/> <fsummary>Return name of Erlang start script</fsummary> <desc> <p>Returns the name of the script that started the current Erlang session.</p> </desc> </func> <func> <name name="nonl" arity="1"/> <fsummary>Remove last newline</fsummary> <desc> <p>Removes the last newline character, if any, in <c><anno>String1</anno></c>.</p> </desc> </func> <func> <name name="send" arity="2"/> <fsummary>Send a message</fsummary> <desc> <p>This function to makes it possible to send a message using the <c>apply/3</c> BIF.</p> </desc> </func> <func> <name name="sendw" arity="2"/> <fsummary>Send a message and wait for an answer</fsummary> <desc> <p>As <c>send/2</c>, but waits for an answer. It is implemented as follows:</p> <code type="none"> sendw(To, Msg) -> To ! {self(),Msg}, receive Reply -> Reply end.</code> <p>The message returned is not necessarily a reply to the message sent.</p> </desc> </func> </funcs> </erlref>