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Extensible Markup Language  |  2003-04-30  |  4.2 KB  |  34 lines
  1. <?xml version="1.0" encoding="utf-8"?>
  2. <html><head><title>Eqv-Operator [Runtime]</title><meta name="filename" content="text/sbasic/common/03060200"/><help:css-file-link xmlns:help="http://openoffice.org/2000/help"/><!--The CSS style header method for setting styles--><style type="text/css">
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  4.         p.P1{
  5.                 }
  6.         span.T1{
  7.                 font-weight:bold;}
  8.         </style></head><body>
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  11.   <help:paragraphinfo state="E" xmlns:help="http://openoffice.org/2000/help"/><help:to-be-embedded Eid="eqv" xmlns:help="http://openoffice.org/2000/help">
  12.   <p class="Head1"><help:paragraphinfo state="U" number="1"/><help:key-word value="Eqv; logical operators" tag="kw66529_1"/><a name="eqv"/><help:link Id="66529">Eqv-Operator [Runtime]</help:link></p>
  13.   <p class="Paragraph"><help:paragraphinfo state="U" number="2"/>Calculates the logical equivalence of two expressions.</p>
  14.   <help:paragraphinfo state="E"/></help:to-be-embedded>
  15.   <p class="Head2"><help:paragraphinfo state="U" number="3" xmlns:help="http://openoffice.org/2000/help"/>Syntax:</p>
  16.   <p class="Paragraph"><help:paragraphinfo state="U" number="4" xmlns:help="http://openoffice.org/2000/help"/>Result = Expression1 Eqv Expression2</p>
  17.   <p class="Head2"><help:paragraphinfo state="U" number="5" xmlns:help="http://openoffice.org/2000/help"/>Parameters:</p>
  18.   <p class="Paragraph"><help:paragraphinfo state="U" number="6" xmlns:help="http://openoffice.org/2000/help"/><span class="T1">Result:</span> Any numeric variable that contains the result of the comparison.</p>
  19.   <p class="Paragraph"><help:paragraphinfo state="U" number="7" xmlns:help="http://openoffice.org/2000/help"/><span class="T1">Expression1, expression2:</span> Any expressions that you want to compare.</p>
  20.   <p class="Paragraph"><help:paragraphinfo state="U" number="8" xmlns:help="http://openoffice.org/2000/help"/>When testing for equivalence between Boolean expressions, the result is <span class="T1">True</span> if both expressions are either <span class="T1">True</span> or <span class="T1">False</span>.</p>
  21.   <p class="Paragraph"><help:paragraphinfo state="U" number="9" xmlns:help="http://openoffice.org/2000/help"/>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.</p>
  22.   <p class="Head2"><help:paragraphinfo state="U" number="10" xmlns:help="http://openoffice.org/2000/help"/>Example:</p>
  23.   <p class="PropText"><help:paragraphinfo state="U" number="11" xmlns:help="http://openoffice.org/2000/help"/>Sub ExampleEqv</p>
  24.   <p class="PropText"><help:paragraphinfo state="U" number="12" xmlns:help="http://openoffice.org/2000/help"/>Dim vA as Variant, vB as Variant, vC as Variant, vD as Variant</p>
  25.   <p class="PropText"><help:paragraphinfo state="U" number="13" xmlns:help="http://openoffice.org/2000/help"/>Dim vOut as Variant</p>
  26.   <p class="PropText"><help:paragraphinfo state="U" number="14" xmlns:help="http://openoffice.org/2000/help"/>vA = 10: vB = 8: vC = 6: vD = Null</p>
  27.   <p class="PropText"><help:paragraphinfo state="U" number="15" xmlns:help="http://openoffice.org/2000/help"/>vOut = A > B Eqv B > C <text:s text:c="2" xmlns:text="http://openoffice.org/2000/text"/>REM returns -1</p>
  28.   <p class="PropText"><help:paragraphinfo state="U" number="16" xmlns:help="http://openoffice.org/2000/help"/>vOut = B > A Eqv B > C <text:s text:c="2" xmlns:text="http://openoffice.org/2000/text"/>REM returns -1</p>
  29.   <p class="PropText"><help:paragraphinfo state="U" number="17" xmlns:help="http://openoffice.org/2000/help"/>vOut = A > B Eqv B > D <text:s text:c="2" xmlns:text="http://openoffice.org/2000/text"/>REM returns -1</p>
  30.   <p class="PropText"><help:paragraphinfo state="U" number="18" xmlns:help="http://openoffice.org/2000/help"/>vOut = (B > D Eqv B > A) REM returns 0</p>
  31.   <p class="PropText"><help:paragraphinfo state="U" number="19" xmlns:help="http://openoffice.org/2000/help"/>vOut = B Eqv A <text:s text:c="10" xmlns:text="http://openoffice.org/2000/text"/>REM returns -1</p>
  32.   <p class="PropText"><help:paragraphinfo state="U" number="20" xmlns:help="http://openoffice.org/2000/help"/>End Sub</p>
  33.   <p class="PropText"><help:paragraphinfo state="U" number="21" xmlns:help="http://openoffice.org/2000/help"/></p>
  34.  </body></html>