67 lines
3.7 KiB
XML
67 lines
3.7 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<helpdocument version="1.0">
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<!--
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* This file is part of the LibreOffice project.
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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-->
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<meta>
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<topic id="textsbasicshared03060200xml" indexer="include" status="PUBLISH">
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<title id="tit" xml-lang="en-US">Eqv Operator</title>
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<filename>/text/sbasic/shared/03060200.xhp</filename>
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</topic>
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</meta>
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<body>
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<section id="eqv">
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<bookmark xml-lang="en-US" branch="index" id="bm_id3156344">
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<bookmark_value>Eqv operator (logical)</bookmark_value>
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</bookmark>
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<h1 id="hd_id3156344"><link href="text/sbasic/shared/03060200.xhp">Eqv Operator</link></h1>
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<paragraph id="par_id3149656" role="paragraph" xml-lang="en-US">Calculates the logical equivalence of two expressions.</paragraph>
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</section>
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<h2 id="hd_id3154367">Syntax:</h2>
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<bascode>
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<paragraph id="par_id3154910" role="bascode" xml-lang="en-US">Result = Expression1 Eqv Expression2</paragraph>
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</bascode>
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<h2 id="hd_id3151043">Parameters:</h2>
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<paragraph id="par_id3150869" role="paragraph" xml-lang="en-US"> <emph>Result:</emph> Any numeric variable that contains the result of the comparison.</paragraph>
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<paragraph id="par_id3150448" role="paragraph" xml-lang="en-US"> <emph>Expression1, Expression2:</emph> Any expressions that you want to compare.</paragraph>
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<paragraph id="par_id3149562" role="paragraph" xml-lang="en-US">When testing for equivalence between Boolean expressions, the result is <emph>True</emph> if both expressions are either <emph>True</emph> or <emph>False</emph>.</paragraph>
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<paragraph id="par_id3154319" role="paragraph" xml-lang="en-US">In a bit-wise comparison, the Eqv operator only sets the corresponding bit in the result if a bit is set in both expressions, or in neither expression.</paragraph>
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<h2 id="hd_id3159154">Example:</h2>
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<bascode>
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<paragraph id="par_idm1341574288" role="bascode" localize="false" xml-lang="en-US">Sub ExampleEqv</paragraph>
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<paragraph id="par_idm1341573056" role="bascode" localize="false" xml-lang="en-US">Dim A As Variant, B As Variant, C As Variant, D As Variant<comment>see #i38265</comment></paragraph>
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<paragraph id="par_idm1341571488" role="bascode" localize="false" xml-lang="en-US">Dim vOut As Variant</paragraph>
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<paragraph id="par_idm1341570256" role="bascode" localize="false" xml-lang="en-US"> A = 10: B = 8: C = 6: D = Null</paragraph>
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<paragraph id="par_id3152462" role="bascode" xml-lang="en-US"> vOut = A > B Eqv B > C ' returns -1</paragraph>
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<paragraph id="par_id3153191" role="bascode" xml-lang="en-US"> vOut = B > A Eqv B > C ' returns 0</paragraph>
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<paragraph id="par_id3145799" role="bascode" xml-lang="en-US"> vOut = A > B Eqv B > D ' returns 0</paragraph>
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<paragraph id="par_id3149412" role="bascode" xml-lang="en-US"> vOut = (B > D Eqv B > A) ' returns -1</paragraph>
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<paragraph id="par_id3149959" role="bascode" xml-lang="en-US"> vOut = B Eqv A ' returns -3</paragraph>
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<paragraph id="par_idm1341560048" role="bascode" localize="false" xml-lang="en-US">End Sub</paragraph>
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</bascode>
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</body>
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</helpdocument>
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