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| 6 | <title>QStrList Class</title>
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| 20 | <font color="#004faf">Home</font></a>
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| 31 | </td>
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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QStrList Class Reference</h1>
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| 33 |
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| 34 | <p>The QStrList class provides a doubly-linked list of char*.
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| 35 | <a href="#details">More...</a>
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| 36 | <p><tt>#include <<a href="qstrlist-h.html">qstrlist.h</a>></tt>
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| 37 | <p>Inherits <a href="qptrlist.html">QPtrList</a><char>.
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| 38 | <p>Inherited by <a href="qstrilist.html">QStrIList</a>.
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| 39 | <p><a href="qstrlist-members.html">List of all member functions.</a>
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| 40 | <h2>Public Members</h2>
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| 41 | <ul>
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| 42 | <li class=fn><a href="#QStrList"><b>QStrList</b></a> ( bool deepCopies = TRUE )</li>
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| 43 | <li class=fn><a href="#QStrList-2"><b>QStrList</b></a> ( const QStrList & list )</li>
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| 44 | <li class=fn><a href="#~QStrList"><b>~QStrList</b></a> ()</li>
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| 45 | <li class=fn>QStrList & <a href="#operator-eq"><b>operator=</b></a> ( const QStrList & list )</li>
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| 46 | </ul>
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| 47 | <hr><a name="details"></a><h2>Detailed Description</h2>
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| 48 |
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| 49 |
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| 50 | The QStrList class provides a doubly-linked list of char*.
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| 51 | <p>
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| 52 |
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| 53 |
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| 54 | <p> If you want a string list of <a href="qstring.html">QString</a>s use <a href="qstringlist.html">QStringList</a>.
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| 55 | <p> This class is a <a href="qptrlist.html">QPtrList</a><char> instance (a list of char*).
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| 56 | <p> QStrList can make deep or shallow copies of the strings that are
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| 57 | inserted.
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| 58 | <p> A <a href="shclass.html#deep-copy">deep copy</a> means that memory is allocated for the string and then
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| 59 | the string data is copied into that memory. A <a href="shclass.html#shallow-copy">shallow copy</a> is just
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| 60 | a copy of the pointer value and not of the string data itself.
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| 61 | <p> The disadvantage of shallow copies is that because a pointer can
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| 62 | be deleted only once, the program must put all strings in a
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| 63 | central place and know when it is safe to delete them (i.e. when
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| 64 | the strings are no longer referenced by other parts of the
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| 65 | program). This can make the program more complex. The advantage of
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| 66 | shallow copies is that they consume far less memory than deep
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| 67 | copies. It is also much faster to copy a pointer (typically 4 or 8
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| 68 | bytes) than to copy string data.
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| 69 | <p> A QStrList that operates on deep copies will, by default, turn on
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| 70 | auto-deletion (see <a href="qptrcollection.html#setAutoDelete">setAutoDelete</a>()). Thus, by default QStrList
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| 71 | will deallocate any string copies it allocates.
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| 72 | <p> The virtual <a href="qptrlist.html#compareItems">compareItems</a>() function is reimplemented and does a
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| 73 | case-sensitive string comparison. The <a href="qptrlist.html#inSort">inSort</a>() function will
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| 74 | insert strings in sorted order. In general it is fastest to insert
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| 75 | the strings as they come and <a href="qptrlist.html#sort">sort</a>() at the end; inSort() is useful
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| 76 | when you just have to add a few extra strings to an already sorted
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| 77 | list.
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| 78 | <p> The <a href="qstrlistiterator.html">QStrListIterator</a> class is an iterator for QStrList.
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| 79 | <p>See also <a href="collection.html">Collection Classes</a>, <a href="text.html">Text Related Classes</a>, and <a href="tools.html">Non-GUI Classes</a>.
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| 80 |
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| 81 | <hr><h2>Member Function Documentation</h2>
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| 82 | <h3 class=fn><a name="QStrList"></a>QStrList::QStrList ( bool deepCopies = TRUE )
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| 83 | </h3>
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| 84 |
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| 85 | <p> Constructs an empty list of strings. Will make deep copies of all
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| 86 | inserted strings if <em>deepCopies</em> is TRUE, or use shallow copies
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| 87 | if <em>deepCopies</em> is FALSE.
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| 88 |
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| 89 | <h3 class=fn><a name="QStrList-2"></a>QStrList::QStrList ( const <a href="qstrlist.html">QStrList</a> & list )
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| 90 | </h3>
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| 91 |
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| 92 | <p> Constructs a copy of <em>list</em>.
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| 93 | <p> If <em>list</em> has deep copies, this list will also get deep copies.
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| 94 | Only the pointers are copied (shallow copy) if the other list does
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| 95 | not use deep copies.
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| 96 |
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| 97 | <h3 class=fn><a name="~QStrList"></a>QStrList::~QStrList ()
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| 98 | </h3>
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| 99 |
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| 100 | <p> Destroys the list. All strings are removed.
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| 101 |
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| 102 | <h3 class=fn><a href="qstrlist.html">QStrList</a> & <a name="operator-eq"></a>QStrList::operator= ( const <a href="qstrlist.html">QStrList</a> & list )
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| 103 | </h3>
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| 104 |
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| 105 | <p> Assigns <em>list</em> to this list and returns a reference to this list.
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| 106 | <p> If <em>list</em> has deep copies, this list will also get deep copies.
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| 107 | Only the pointers are copied (shallow copy) if the other list does
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| 108 | not use deep copies.
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| 109 |
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| 110 | <!-- eof -->
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| 111 | <hr><p>
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| 112 | This file is part of the <a href="index.html">Qt toolkit</a>.
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| 113 | Copyright © 1995-2007
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| 114 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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| 115 | <table width=100% cellspacing=0 border=0><tr>
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| 116 | <td>Copyright © 2007
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| 117 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 118 | <td align=right><div align=right>Qt 3.3.8</div>
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| 119 | </table></div></address></body>
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