1<?xml version="1.0" encoding="UTF-8"?> 2 3 4<!--*********************************************************************** 5 * 6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 7 * 8 * Copyright 2000, 2010 Oracle and/or its affiliates. 9 * 10 * OpenOffice.org - a multi-platform office productivity suite 11 * 12 * This file is part of OpenOffice.org. 13 * 14 * OpenOffice.org is free software: you can redistribute it and/or modify 15 * it under the terms of the GNU Lesser General Public License version 3 16 * only, as published by the Free Software Foundation. 17 * 18 * OpenOffice.org is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU Lesser General Public License version 3 for more details 22 * (a copy is included in the LICENSE file that accompanied this code). 23 * 24 * You should have received a copy of the GNU Lesser General Public License 25 * version 3 along with OpenOffice.org. If not, see 26 * <http://www.openoffice.org/license.html> 27 * for a copy of the LGPLv3 License. 28 * 29 ************************************************************************--> 30 31<helpdocument version="1.0"> 32<meta> 33<topic id="textsbasicshared03060300xml" indexer="include" status="PUBLISH"> 34<title id="tit" xml-lang="en-US">Imp-Operator [Runtime]</title> 35<filename>/text/sbasic/shared/03060300.xhp</filename> 36</topic> 37<history> 38<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created> 39<lastedited date="2004-12-15T10:27:24">converted from old format - fpe</lastedited> 40</history> 41</meta> 42<body> 43<section id="imp"> 44<bookmark xml-lang="en-US" branch="index" id="bm_id3156024"><bookmark_value>Imp operator (logical)</bookmark_value> 45</bookmark> 46<paragraph role="heading" id="hd_id3156024" xml-lang="en-US" level="1" l10n="U" oldref="1"><link href="text/sbasic/shared/03060300.xhp" name="Imp-Operator [Runtime]">Imp Operator [Runtime]</link></paragraph> 47<paragraph role="paragraph" id="par_id3148947" xml-lang="en-US" l10n="U" oldref="2">Performs a logical implication on two expressions.</paragraph> 48</section> 49<paragraph role="heading" id="hd_id3148664" xml-lang="en-US" level="2" l10n="U" oldref="3">Syntax:</paragraph> 50<paragraph role="paragraph" id="par_id3149656" xml-lang="en-US" l10n="U" oldref="4">Result = Expression1 Imp Expression2</paragraph> 51<paragraph role="heading" id="hd_id3151212" xml-lang="en-US" level="2" l10n="U" oldref="5">Parameters:</paragraph> 52<paragraph role="paragraph" id="par_id3154910" xml-lang="en-US" l10n="U" oldref="6"> 53<emph>Result:</emph> Any numeric variable that contains the result of the implication.</paragraph> 54<paragraph role="paragraph" id="par_id3156281" xml-lang="en-US" l10n="U" oldref="7"> 55<emph>Expression1, Expression2:</emph> Any expressions that you want to evaluate with the Imp operator.</paragraph> 56<paragraph role="paragraph" id="par_id3150440" xml-lang="en-US" l10n="U" oldref="8">If you use the Imp operator in Boolean expressions, False is only returned if the first expression evaluates to True and the second expression to False.</paragraph> 57<paragraph role="paragraph" id="par_id3163710" xml-lang="en-US" l10n="U" oldref="9">If you use the Imp operator in bit expressions, a bit is deleted from the result if the corresponding bit is set in the first expression and the corresponding bit is deleted in the second expression.</paragraph> 58<paragraph role="heading" id="hd_id3147318" xml-lang="en-US" level="2" l10n="U" oldref="10">Example:</paragraph> 59<paragraph role="paragraph" id="par_id3155854" xml-lang="en-US" l10n="U" oldref="11">Sub ExampleImp</paragraph> 60<paragraph role="paragraph" id="par_id3145272" xml-lang="en-US" l10n="CHG" oldref="12">Dim A as Variant, B as Variant, C as Variant, D as Variant</paragraph> 61<paragraph role="paragraph" id="par_id3159156" xml-lang="en-US" l10n="U" oldref="13">Dim vOut as Variant</paragraph> 62<paragraph role="paragraph" id="par_id3151116" xml-lang="en-US" l10n="U" oldref="14">A = 10: B = 8: C = 6: D = Null</paragraph> 63<paragraph role="paragraph" id="par_id3145750" xml-lang="en-US" l10n="U" oldref="15">vOut = A > B Imp B > C REM returns -1</paragraph> 64<paragraph role="paragraph" id="par_id3156441" xml-lang="en-US" l10n="CHG" oldref="16">vOut = B > A Imp B > C REM returns -1</paragraph> 65<paragraph role="paragraph" id="par_id3152596" xml-lang="en-US" l10n="CHG" oldref="17">vOut = A > B Imp B > D REM returns 0</paragraph> 66<paragraph role="paragraph" id="par_id3154942" xml-lang="en-US" l10n="CHG" oldref="18">vOut = (B > D Imp B > A) REM returns -1</paragraph> 67<paragraph role="paragraph" id="par_id3154492" xml-lang="en-US" l10n="CHG" oldref="19">vOut = B Imp A REM returns -1</paragraph> 68<paragraph role="paragraph" id="par_id3147394" xml-lang="en-US" l10n="U" oldref="20">End Sub</paragraph> 69</body> 70</helpdocument> 71