1<?xml version="1.0" encoding="UTF-8"?> 2 3 4<!--*********************************************************** 5 * 6 * Licensed to the Apache Software Foundation (ASF) under one 7 * or more contributor license agreements. See the NOTICE file 8 * distributed with this work for additional information 9 * regarding copyright ownership. The ASF licenses this file 10 * to you under the Apache License, Version 2.0 (the 11 * "License"); you may not use this file except in compliance 12 * with the License. You may obtain a copy of the License at 13 * 14 * http://www.apache.org/licenses/LICENSE-2.0 15 * 16 * Unless required by applicable law or agreed to in writing, 17 * software distributed under the License is distributed on an 18 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 19 * KIND, either express or implied. See the License for the 20 * specific language governing permissions and limitations 21 * under the License. 22 * 23 ***********************************************************--> 24 25 26 27<helpdocument version="1.0"> 28<meta> 29<topic id="textsbasicshared03060300xml" indexer="include" status="PUBLISH"> 30<title id="tit" xml-lang="en-US">Imp-Operator [Runtime]</title> 31<filename>/text/sbasic/shared/03060300.xhp</filename> 32</topic> 33<history> 34<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created> 35<lastedited date="2004-12-15T10:27:24">converted from old format - fpe</lastedited> 36</history> 37</meta> 38<body> 39<section id="imp"> 40<bookmark xml-lang="en-US" branch="index" id="bm_id3156024"><bookmark_value>Imp operator (logical)</bookmark_value> 41</bookmark> 42<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> 43<paragraph role="paragraph" id="par_id3148947" xml-lang="en-US" l10n="U" oldref="2">Performs a logical implication on two expressions.</paragraph> 44</section> 45<paragraph role="heading" id="hd_id3148664" xml-lang="en-US" level="2" l10n="U" oldref="3">Syntax:</paragraph> 46<paragraph role="paragraph" id="par_id3149656" xml-lang="en-US" l10n="U" oldref="4">Result = Expression1 Imp Expression2</paragraph> 47<paragraph role="heading" id="hd_id3151212" xml-lang="en-US" level="2" l10n="U" oldref="5">Parameters:</paragraph> 48<paragraph role="paragraph" id="par_id3154910" xml-lang="en-US" l10n="U" oldref="6"> 49<emph>Result:</emph> Any numeric variable that contains the result of the implication.</paragraph> 50<paragraph role="paragraph" id="par_id3156281" xml-lang="en-US" l10n="U" oldref="7"> 51<emph>Expression1, Expression2:</emph> Any expressions that you want to evaluate with the Imp operator.</paragraph> 52<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> 53<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> 54<paragraph role="heading" id="hd_id3147318" xml-lang="en-US" level="2" l10n="U" oldref="10">Example:</paragraph> 55<paragraph role="paragraph" id="par_id3155854" xml-lang="en-US" l10n="U" oldref="11">Sub ExampleImp</paragraph> 56<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> 57<paragraph role="paragraph" id="par_id3159156" xml-lang="en-US" l10n="U" oldref="13">Dim vOut as Variant</paragraph> 58<paragraph role="paragraph" id="par_id3151116" xml-lang="en-US" l10n="U" oldref="14">A = 10: B = 8: C = 6: D = Null</paragraph> 59<paragraph role="paragraph" id="par_id3145750" xml-lang="en-US" l10n="U" oldref="15">vOut = A > B Imp B > C REM returns -1</paragraph> 60<paragraph role="paragraph" id="par_id3156441" xml-lang="en-US" l10n="CHG" oldref="16">vOut = B > A Imp B > C REM returns -1</paragraph> 61<paragraph role="paragraph" id="par_id3152596" xml-lang="en-US" l10n="CHG" oldref="17">vOut = A > B Imp B > D REM returns 0</paragraph> 62<paragraph role="paragraph" id="par_id3154942" xml-lang="en-US" l10n="CHG" oldref="18">vOut = (B > D Imp B > A) REM returns -1</paragraph> 63<paragraph role="paragraph" id="par_id3154492" xml-lang="en-US" l10n="CHG" oldref="19">vOut = B Imp A REM returns -1</paragraph> 64<paragraph role="paragraph" id="par_id3147394" xml-lang="en-US" l10n="U" oldref="20">End Sub</paragraph> 65</body> 66</helpdocument> 67