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  57. <helpdocument version="1.0">
  58. <meta>
  59. <topic id="textsbasicshared03060200xml" indexer="include" status="PUBLISH">
  60. <title id="tit" xml-lang="en-US">Eqv-Operator [Runtime]</title>
  61. <filename>/text/sbasic/shared/03060200.xhp</filename>
  62. </topic>
  63. <history>
  64. <created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created>
  65. <lastedited date="2004-12-14T11:25:51">converted from old format - fpe</lastedited>
  66. </history>
  67. </meta>
  68. <body>
  69. <section id="eqv">
  70. <bookmark xml-lang="en-US" branch="index" id="bm_id3156344"><bookmark_value>Eqv operator (logical)</bookmark_value>
  71. </bookmark>
  72. <paragraph role="heading" id="hd_id3156344" xml-lang="en-US" level="1" l10n="CHG" oldref="1"><link href="text/sbasic/shared/03060200.xhp" name="Eqv-Operator [Runtime]">Eqv Operator [Runtime]</link></paragraph>
  73. <paragraph role="paragraph" id="par_id3149656" xml-lang="en-US" l10n="U" oldref="2">Calculates the logical equivalence of two expressions.</paragraph>
  74. </section>
  75. <paragraph role="heading" id="hd_id3154367" xml-lang="en-US" level="2" l10n="U" oldref="3">Syntax:</paragraph>
  76. <paragraph role="paragraph" id="par_id3154910" xml-lang="en-US" l10n="U" oldref="4">Result = Expression1 Eqv Expression2</paragraph>
  77. <paragraph role="heading" id="hd_id3151043" xml-lang="en-US" level="2" l10n="U" oldref="5">Parameters:</paragraph>
  78. <paragraph role="paragraph" id="par_id3150869" xml-lang="en-US" l10n="U" oldref="6">
  79. <emph>Result:</emph> Any numeric variable that contains the result of the comparison.</paragraph>
  80. <paragraph role="paragraph" id="par_id3150448" xml-lang="en-US" l10n="U" oldref="7">
  81. <emph>Expression1, Expression2:</emph> Any expressions that you want to compare.</paragraph>
  82. <paragraph role="paragraph" id="par_id3149562" xml-lang="en-US" l10n="U" oldref="8">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>
  83. <paragraph role="paragraph" id="par_id3154319" xml-lang="en-US" l10n="U" oldref="9">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>
  84. <paragraph role="heading" id="hd_id3159154" xml-lang="en-US" level="2" l10n="U" oldref="10">Example:</paragraph>
  85. <paragraph role="paragraph" id="par_id3147426" xml-lang="en-US" l10n="U" oldref="11">Sub ExampleEqv</paragraph>
  86. <paragraph role="paragraph" id="par_id3155308" xml-lang="en-US" l10n="CHG" oldref="12">Dim A as Variant, B as Variant, C as Variant, D as Variant<comment>UFI: #i38265#</comment></paragraph>
  87. <paragraph role="paragraph" id="par_id3146986" xml-lang="en-US" l10n="U" oldref="13">Dim vOut as Variant</paragraph>
  88. <paragraph role="paragraph" id="par_id3147434" xml-lang="en-US" l10n="CHG" oldref="14">A = 10: B = 8: C = 6: D = Null</paragraph>
  89. <paragraph role="paragraph" id="par_id3152462" xml-lang="en-US" l10n="U" oldref="15">vOut = A > B Eqv B > C REM returns -1</paragraph>
  90. <paragraph role="paragraph" id="par_id3153191" xml-lang="en-US" l10n="CHG" oldref="16">vOut = B > A Eqv B > C REM returns 0</paragraph>
  91. <paragraph role="paragraph" id="par_id3145799" xml-lang="en-US" l10n="CHG" oldref="17">vOut = A > B Eqv B > D REM returns 0</paragraph>
  92. <paragraph role="paragraph" id="par_id3149412" xml-lang="en-US" l10n="CHG" oldref="18">vOut = (B > D Eqv B > A) REM returns -1</paragraph>
  93. <paragraph role="paragraph" id="par_id3149959" xml-lang="en-US" l10n="CHG" oldref="19">vOut = B Eqv A REM returns -3</paragraph>
  94. <paragraph role="paragraph" id="par_id3145646" xml-lang="en-US" l10n="U" oldref="20">End Sub</paragraph>
  95. </body>
  96. </helpdocument>
  97.