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<html> <head> <title>MayaChemTools:Documentation:BitVector.pm</title> <meta http-equiv="content-type" content="text/html;charset=utf-8"> <link rel="stylesheet" type="text/css" href="../../css/MayaChemTools.css"> </head> <body leftmargin="20" rightmargin="20" topmargin="10" bottommargin="10"> <br/> <center> <a href="http://www.mayachemtools.org" title="MayaChemTools Home"><img src="../../images/MayaChemToolsLogo.gif" border="0" alt="MayaChemTools"></a> </center> <br/> <div class="DocNav"> <table width="100%" border=0 cellpadding=0 cellspacing=2> <tr align="left" valign="top"><td width="33%" align="left"><a href="./UFFAtomTypes.html" title="UFFAtomTypes.html">Previous</a> <a href="./index.html" title="Table of Contents">TOC</a> <a href="./Bond.html" title="Bond.html">Next</a></td><td width="34%" align="middle"><strong>BitVector.pm</strong></td><td width="33%" align="right"><a href="././code/BitVector.html" title="View source code">Code</a> | <a href="./../pdf/BitVector.pdf" title="PDF US Letter Size">PDF</a> | <a href="./../pdfgreen/BitVector.pdf" title="PDF US Letter Size with narrow margins: www.changethemargins.com">PDFGreen</a> | <a href="./../pdfa4/BitVector.pdf" title="PDF A4 Size">PDFA4</a> | <a href="./../pdfa4green/BitVector.pdf" title="PDF A4 Size with narrow margins: www.changethemargins.com">PDFA4Green</a></td></tr> </table> </div> <p> </p> <h2>NAME</h2> <p>BitVector</p> <p> </p> <h2>SYNOPSIS</h2> <p>use BitVector;</p> <p>use BitVector ();</p> <p>use BitVector qw(:all);</p> <p> </p> <h2>DESCRIPTION</h2> <p><strong>BitVector</strong> class provides the following methods:</p> <p> <a href="#new">new</a>, <a href="#clearallbits">ClearAllBits</a>, <a href="#clearbit">ClearBit</a>, <a href="#clearbits">ClearBits</a>, <a href="#clearbitsrange">ClearBitsRange</a>, <a href="#copy">Copy</a>, <a href="#flipallbits">FlipAllBits</a> , <a href="#flipbit">FlipBit</a>, <a href="#flipbits">FlipBits</a>, <a href="#flipbitsrange">FlipBitsRange</a>, <a href="#getbit">GetBit</a>, <a href="#getbitsasbinarystring">GetBitsAsBinaryString</a> , <a href="#getbitsasdecimalstring">GetBitsAsDecimalString</a>, <a href="#getbitsashexadecimalstring">GetBitsAsHexadecimalString</a>, <a href="#getbitsasoctalstring">GetBitsAsOctalString</a> , <a href="#getbitsasrawbinarystring">GetBitsAsRawBinaryString</a>, <a href="#getdensityofclearbits">GetDensityOfClearBits</a>, <a href="#getdensityofsetbits">GetDensityOfSetBits</a> , <a href="#getnumofclearbits">GetNumOfClearBits</a>, <a href="#getnumofsetbits">GetNumOfSetBits</a>, <a href="#getsize">GetSize</a>, <a href="#isbitclear">IsBitClear</a>, <a href="#isbitset">IsBitSet</a>, <a href="#isbitvector">IsBitVector</a> , <a href="#newfrombinarystring">NewFromBinaryString</a>, <a href="#newfromdecimalstring">NewFromDecimalString</a>, <a href="#newfromhexadecimalstring">NewFromHexadecimalString</a> , <a href="#newfromoctalstring">NewFromOctalString</a>, <a href="#newfromrawbinarystring">NewFromRawBinaryString</a>, <a href="#reverse">Reverse</a>, <a href="#setallbits">SetAllBits</a>, <a href="#setbit">SetBit</a> , <a href="#setbitvalue">SetBitValue</a>, <a href="#setbitvaluebitorder">SetBitValueBitOrder</a>, <a href="#setbitvalueprintformat">SetBitValuePrintFormat</a>, <a href="#setbits">SetBits</a> , <a href="#setbitsasbinarystring">SetBitsAsBinaryString</a>, <a href="#setbitsasdecimalstring">SetBitsAsDecimalString</a>, <a href="#setbitsashexadecimalstring">SetBitsAsHexadecimalString</a> , <a href="#setbitsasoctalstring">SetBitsAsOctalString</a>, <a href="#setbitsasrawbinarystring">SetBitsAsRawBinaryString</a>, <a href="#setbitsrange">SetBitsRange</a>, <a href="#stringifybitvector">StringifyBitVector</a> </p><p>The following methods can also be used as functions:</p> <p>IsBitVector, NewFromBinaryString, NewFromDecimalString, NewFromHexadecimalString, NewFromOctalString, NewFromRawBinaryString</p> <p>The following operators are overloaded:</p> <div class="OptionsBox"> "" & | ^ ~ == !=</div> <p>Internally, bits are stored in ascending order using Perl vec function. Regardless of machine order, big-endian or little-endian, vec function always considers first string byte as the lowest byte and first bit within each byte as the lowest bit.</p> <p>Things to keep in mind:</p> <div class="OptionsBox"> o Bit numbers range from 0 to (Size - 1). <br/> o Bit data retieval methods provide options to data in ascending or descending bit order. Default is ascending bit order. <br/> o Stringyfy method provides an option to print data in ascending or descending bit order. Default is ascending bit order.</div> <p> </p> <h2>METHODS</h2> <dl> <dt><strong><a name="new" class="item"><strong>new</strong></a></strong></dt> <dd> <div class="OptionsBox"> $NewBitVector = new BitVector($Size);</div> <p>Create a new <em>BitVector</em> object of size <em>Size</em> and return newly created <strong>BitVector</strong>. Bit numbers range from 0 to 1 less than <em>Size</em>.</p> </dd> <dt><strong><a name="clearallbits" class="item"><strong>ClearAllBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->ClearAllBits();</div> <p>Set all bit values to 0 in <em>BitVector</em> object and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="clearbit" class="item"><strong>ClearBit</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->ClearBit($BitNum);</div> <p>Set specified bit number <em>BitNum</em> to 0 in <em>BitVector</em> object and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="clearbits" class="item"><strong>ClearBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->ClearBits(@BitNums);</div> <p>Set specified bit numbers <em>BitNums</em> to 0 in <em>BitVector</em> object and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="clearbitsrange" class="item"><strong>ClearBitsRange</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->ClearBitsRange($MinBitNum, $MaxBitNum);</div> <p>Set specified bit numbers between <em>MinBitNum</em> and <em>MaxBitNum</em> to 0 in <em>BitVector</em> object and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="copy" class="item"><strong>Copy</strong></a></strong></dt> <dd> <div class="OptionsBox"> $NewBitVector = $BitVector->Copy();</div> <p>Copy <em>BitVector</em> and its associated data to a new <strong>BitVector</strong> and return a new <strong>BitVector</strong>.</p> </dd> <dt><strong><a name="flipallbits" class="item"><strong>FlipAllBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->FlipAllBits();</div> <p>Flip values of all bits in <em>BitVector</em> and its associated data to a new <strong>BitVector</strong> and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="flipbit" class="item"><strong>FlipBit</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->FlipBit($BitNum);</div> <p>Flip value of specified <em>BitNum</em> of in <em>BitVector</em> and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="flipbits" class="item"><strong>FlipBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->FlipBits(@BitNums);</div> <p>Flip values of specified bit numbers <em>BitNums</em> in <em>BitVector</em> object and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="flipbitsrange" class="item"><strong>FlipBitsRange</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->FlipBitsRange($MinBitNum, $MaxBitNum);</div> <p>Flip values of specified bit numbers between <em>MinBitNum</em> and <em>MaxBitNum</em> in <em>BitVector</em> object and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="getbit" class="item"><strong>GetBit</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitValue = $BitVector->GetBit($BitNum);</div> <p>Returns value of bit number <em>BitNum</em> in <em>BitVector</em> object.</p> </dd> <dt><strong><a name="getbitsasbinarystring" class="item"><strong>GetBitsAsBinaryString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitString = $BitVector->GetBitsAsBinaryString([$BitOrder]);</div> <p>Returns values of bits in <em>BitVector</em> as an ascii bit string containing 0s and 1s.</p> <p>Default <em>BitOrder</em> is <em>Ascending</em> bit order which corresponds to first bit in each byte as the loweset bit as opposed to the higest bit.</p> </dd> <dt><strong><a name="getbitsasdecimalstring" class="item"><strong>GetBitsAsDecimalString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitString = $BitVector->GetBitsAsDecimalString([$BitOrder]);</div> <p>Returns values of bits in <em>BitVector</em> as a decimal bit string containing values from 0 to 9.</p> <p>Default <em>BitOrder</em> is <em>Ascending</em> bit order which corresponds to first bit in each byte as the loweset bit as opposed to the higest bit.</p> </dd> <dt><strong><a name="getbitsashexadecimalstring" class="item"><strong>GetBitsAsHexadecimalString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitString = $BitVector->GetBitsAsHexadecimalString([$BitOrder]);</div> <p>Returns values of bits in <em>BitVector</em> as a hexadecimal bit string containing values from 0 to 9 and a to f.</p> <p>Default <em>BitOrder</em> is <em>Ascending</em> bit order which corresponds to first bit in each byte as the loweset bit as opposed to the higest bit.</p> </dd> <dt><strong><a name="getbitsasoctalstring" class="item"><strong>GetBitsAsOctalString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitString = $BitVector->GetBitsAsOctalString([$BitOrder]);</div> <p>Returns values of bits in <em>BitVector</em> as an octal bit string containing values form 0 to 7.</p> <p>Default <em>BitOrder</em> is <em>Ascending</em> bit order which corresponds to first bit in each byte as the loweset bit as opposed to the higest bit.</p> </dd> <dt><strong><a name="getbitsasrawbinarystring" class="item"><strong>GetBitsAsRawBinaryString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitString = $BitVector->GetBitsAsRawBinaryString();</div> <p>Returns values of bits in <em>BitVector</em> as an string corresponding to packed bit values used by Perl vec function without perfoming any unpacking.</p> </dd> <dt><strong><a name="getdensityofclearbits" class="item"><strong>GetDensityOfClearBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $ClearBitsDensity = $BitVector->GetDensityOfClearBits();</div> <p>Returns density of clear bits in <em>BitVector</em> which corresponds to number of bits set to 0 <em>BitVector</em> divided by its size.</p> </dd> <dt><strong><a name="getdensityofsetbits" class="item"><strong>GetDensityOfSetBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $SetBitsDensity = $BitVector->GetDensityOfSetBits();</div> <p>Returns density of set bits in <em>BitVector</em> which corresponds to number of bits set to 1 in <em>BitVector</em> divided by its size.</p> </dd> <dt><strong><a name="getnumofclearbits" class="item"><strong>GetNumOfClearBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $NumOfClearBits = $BitVector->GetNumOfClearBits();</div> <p>Returns number of bits set to 0 in <em>BitVector</em>.</p> </dd> <dt><strong><a name="getnumofsetbits" class="item"><strong>GetNumOfSetBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $NumOfSetBits = $BitVector->GetNumOfSetBits();</div> <p>Returns number of bits set to 1 in <em>BitVector</em>.</p> </dd> <dt><strong><a name="getsize" class="item"><strong>GetSize</strong></a></strong></dt> <dd> <div class="OptionsBox"> $Size = $BitVector->GetSize();</div> <p>Returns size of <em>BitVector</em>.</p> </dd> <dt><strong><a name="isbitclear" class="item"><strong>IsBitClear</strong></a></strong></dt> <dd> <div class="OptionsBox"> $Status = $BitVector->IsBitClear();</div> <p>Returns 1 or 0 based on whether <em>BitNum</em> is set to 0 in <em>BitVector</em>.</p> </dd> <dt><strong><a name="isbitset" class="item"><strong>IsBitSet</strong></a></strong></dt> <dd> <div class="OptionsBox"> $Status = $BitVector->IsBitSet($BitNum);</div> <p>Returns 1 or 0 based on whether <em>BitNum</em> is set to 1 in <em>BitVector</em>.</p> </dd> <dt><strong><a name="isbitvector" class="item"><strong>IsBitVector</strong></a></strong></dt> <dd> <div class="OptionsBox"> $Status = BitVector::IsBitVector($Object);</div> <p>Returns 1 or 0 based on whether <em>Object</em> is a <strong>BitVector</strong> object.</p> </dd> <dt><strong><a name="newfrombinarystring" class="item"><strong>NewFromBinaryString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $NewBitVector = BitVector::NewFromBinaryString($BinaryString, [$BitOrder]); <br/> $NewBitVector = $BitVector->NewFromBinaryString($BinaryString, [$BitOrder]);</div> <p>Creates a new <em>BitVector</em> using <em>BinaryString</em> and returns new <strong>BitVector</strong> object.</p> <p>Default <em>BitOrder</em> is <em>Ascending</em> bit order which corresponds to first bit in each byte as the loweset bit as opposed to the higest bit.</p> </dd> <dt><strong><a name="newfromdecimalstring" class="item"><strong>NewFromDecimalString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $NewBitVector = BitVector::NewFromDecimalString($DecimalString, [$BitOrder]); <br/> $NewBitVector = $BitVector->NewFromDecimalString($DecimalString, [$BitOrder]);</div> <p>Creates a new <em>BitVector</em> using <em>DecimalString</em> and returns new <strong>BitVector</strong> object.</p> <p>Default <em>BitOrder</em> is <em>Ascending</em> bit order which corresponds to first bit in each byte as the loweset bit as opposed to the higest bit.</p> </dd> <dt><strong><a name="newfromhexadecimalstring" class="item"><strong>NewFromHexadecimalString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $NewBitVector = BitVector::NewFromHexadecimalString( $HexadecimalString, [$BitOrder]); <br/> $NewBitVector = $BitVector->NewFromHexadecimalString( $HexadecimalString, [$BitOrder]);</div> <p>Creates a new <em>BitVector</em> using <em>HexadecimalString</em> and returns new <strong>BitVector</strong> object.</p> <p>Default <em>BitOrder</em> is <em>Ascending</em> bit order which corresponds to first bit in each byte as the loweset bit as opposed to the higest bit.</p> </dd> <dt><strong><a name="newfromoctalstring" class="item"><strong>NewFromOctalString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $NewBitVector = BitVector::NewFromOctalString($OctalString, [$BitOrder]); <br/> $NewBitVector = $BitVector->NewFromOctalString($OctalString, [$BitOrder]);</div> <p>Creates a new <em>BitVector</em> using <em>OctalString</em> and returns new <strong>BitVector</strong> object.</p> <p>Default <em>BitOrder</em> is <em>Ascending</em> bit order which corresponds to first bit in each byte as the loweset bit as opposed to the higest bit.</p> </dd> <dt><strong><a name="newfromrawbinarystring" class="item"><strong>NewFromRawBinaryString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $NewBitVector = BitVector::NewFromRawBinaryString( $RawBinaryString); <br/> $NewBitVector = $BitVector->NewFromRawBinaryString( $RawBinaryString);</div> <p>Creates a new <em>BitVector</em> using <em>RawBinaryString</em> and returns new <strong>BitVector</strong> object.</p> </dd> <dt><strong><a name="reverse" class="item"><strong>Reverse</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->Reverse();</div> <p>Reverses values of bits in <em>BitVector</em> and returns <em>BitVector</em>. First bit number ends up with value of last bit number.</p> </dd> <dt><strong><a name="setallbits" class="item"><strong>SetAllBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetAllBits();</div> <p>Sets values of all bits in <em>BitVector</em> to 1 and returns <em>BitVector</em>.</p> </dd> <dt><strong><a name="setbit" class="item"><strong>SetBit</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetBit($BitNum);</div> <p>Sets value of <em>BitNum</em> to 1 in <em>BitVector</em> and returns <em>BitVector</em>.</p> </dd> <dt><strong><a name="setbitvalue" class="item"><strong>SetBitValue</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetBitValue($BitNum, $BitValue);</div> <p>Sets value of <em>BitNum</em> to <em>BitValue</em> in <em>BitVector</em> and returns <em>BitVector</em>.</p> </dd> <dt><strong><a name="setbitvaluebitorder" class="item"><strong>SetBitValueBitOrder</strong></a></strong></dt> <dd> <div class="OptionsBox"> BitVector::SetBitValueBitOrder($BitOrder); <br/> $BitVector->SetBitValueBitOrder($BitOrder);</div> <p>Set bit order for printing <strong>BitVector</strong> values during stringification of <strong>BitVector</strong> object. Possible bit order values: <em>Ascending or Descending</em>.</p> <p>Bit order can be set for either an individual <strong>BitVector</strong> object or the class. Default is to print bits in each byte in <em>Asscending</em> bit order.</p> <p>Internally, bits are stored in <em>Ascending</em> bit order using Perl vec function. Regardless of machine order, big-endian or little-endian, vec function always considers first string byte as the lowest byte and first bit within each byte as the lowest bit.</p> </dd> <dt><strong><a name="setbitvalueprintformat" class="item"><strong>SetBitValuePrintFormat</strong></a></strong></dt> <dd> <div class="OptionsBox"> BitVector::SetBitValuePrintFormat($PrintValueFormat); <br/> $BitVector->SetBitValuePrintFormat($PrintValueFormat);</div> <p>Set bit values print format for printing <strong>BitVector</strong> values during stringification of <strong>BitVector</strong> object. Possible print format values: <em>Binary, Bin, Hexadecimal, Hex, Decimal, Dec, Octal, Oct, RawBinary, RawBin</em>. Default: <em>Binary</em>.</p> <p>Bit values print format can be set for either an individual <strong>BitVector</strong> object or the class.</p> </dd> <dt><strong><a name="setbits" class="item"><strong>SetBits</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetBits(@BitNums);</div> <p>Set specified bit numbers <em>BitNums</em> to 1 in <em>BitVector</em> object and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="setbitsasbinarystring" class="item"><strong>SetBitsAsBinaryString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetBitsAsBinaryString($BinaryString);</div> <p>Set bit values in <em>BitVector</em> using specified <em>BinaryString</em> and return <em>BitVector</em>. The size of <em>BitVector</em> is not changed.</p> </dd> <dt><strong><a name="setbitsasdecimalstring" class="item"><strong>SetBitsAsDecimalString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetBitsAsDecimalString($DecimalString, [$BitOrder]);</div> <p>Set bit values in <em>BitVector</em> using specified <em>DecimalString</em> and return <em>BitVector</em>. The size of <em>BitVector</em> is not changed.</p> </dd> <dt><strong><a name="setbitsashexadecimalstring" class="item"><strong>SetBitsAsHexadecimalString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetBitsAsHexadecimalString($HexadecimalString, [$BitOrder]);</div> <p>Set bit values in <em>BitVector</em> using specified <em>HexadecimalString</em> and return <em>BitVector</em>. The size of <em>BitVector</em> is not changed.</p> </dd> <dt><strong><a name="setbitsasoctalstring" class="item"><strong>SetBitsAsOctalString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetBitsAsOctalString($OctalString, [$BitOrder]);</div> <p>Set bit values in <em>BitVector</em> using specified <em>OctalString</em> and return <em>BitVector</em>. The size of <em>BitVector</em> is not changed.</p> </dd> <dt><strong><a name="setbitsasrawbinarystring" class="item"><strong>SetBitsAsRawBinaryString</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetBitsAsRawBinaryString($RawBinaryString);</div> <p>Set bit values in <em>BitVector</em> using specified <em>RawBinaryString</em> and return <em>BitVector</em>. The size of <em>BitVector</em> is not changed.</p> </dd> <dt><strong><a name="setbitsrange" class="item"><strong>SetBitsRange</strong></a></strong></dt> <dd> <div class="OptionsBox"> $BitVector->SetBitsRange($MinBitNum, $MaxBitNum);</div> <p>Set specified bit numbers between <em>MinBitNum</em> and <em>MaxBitNum</em> to 1 in <em>BitVector</em> object and return <em>BitVector</em>.</p> </dd> <dt><strong><a name="stringifybitvector" class="item"><strong>StringifyBitVector</strong></a></strong></dt> <dd> <div class="OptionsBox"> $String = $BitVector->StringifyBitVector();</div> <p>Returns a string containing information about <em>BitVector</em> object.</p> </dd> </dl> <p> </p> <h2>AUTHOR</h2> <p><a href="mailto:msud@san.rr.com">Manish Sud</a></p> <p> </p> <h2>SEE ALSO</h2> <p><a href="./Vector.html">Vector.pm</a> </p> <p> </p> <h2>COPYRIGHT</h2> <p>Copyright (C) 2015 Manish Sud. All rights reserved.</p> <p>This file is part of MayaChemTools.</p> <p>MayaChemTools is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.</p> <p> </p><p> </p><div class="DocNav"> <table width="100%" border=0 cellpadding=0 cellspacing=2> <tr align="left" valign="top"><td width="33%" align="left"><a href="./UFFAtomTypes.html" title="UFFAtomTypes.html">Previous</a> <a href="./index.html" title="Table of Contents">TOC</a> <a href="./Bond.html" title="Bond.html">Next</a></td><td width="34%" align="middle"><strong>March 29, 2015</strong></td><td width="33%" align="right"><strong>BitVector.pm</strong></td></tr> </table> </div> <br /> <center> <img src="../../images/h2o2.png"> </center> </body> </html>