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92 lines
3.9 KiB
92 lines
3.9 KiB
14 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/tools/qstring.cpp:6903 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>QConstString Class</title>
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QConstString Class Reference</h1>
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<p>The QConstString class provides string objects using constant Unicode data.
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<a href="#details">More...</a>
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<p>All the functions in this class are <a href="threads.html#reentrant">reentrant</a> when Qt is built with thread support.</p>
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<p><tt>#include <<a href="qstring-h.html">qstring.h</a>></tt>
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<p><a href="qconststring-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#QConstString"><b>QConstString</b></a> ( const QChar * unicode, uint length )</li>
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<li class=fn><a href="#~QConstString"><b>~QConstString</b></a> ()</li>
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<li class=fn>const QString & <a href="#string"><b>string</b></a> () const</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The QConstString class provides string objects using constant Unicode data.
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<p> In order to minimize copying, highly optimized applications can
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use QConstString to provide a <a href="qstring.html">QString</a>-compatible object from
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existing Unicode data. It is then the programmer's responsibility
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to ensure that the Unicode data exists for the entire lifetime of
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the QConstString object.
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<p> A QConstString is created with the QConstString constructor. The
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string held by the object can be obtained by calling <a href="#string">string</a>().
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<p>See also <a href="text.html">Text Related Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="QConstString"></a>QConstString::QConstString ( const <a href="qchar.html">QChar</a> * unicode, uint length )
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</h3>
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Constructs a QConstString that uses the first <em>length</em> Unicode
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characters in the array <em>unicode</em>. Any attempt to modify copies
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of the string will cause it to create a copy of the data, thus it
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remains forever unmodified.
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<p> The data in <em>unicode</em> is not copied. The caller must be able to
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guarantee that <em>unicode</em> will not be deleted or modified.
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<h3 class=fn><a name="~QConstString"></a>QConstString::~QConstString ()
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</h3>
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Destroys the QConstString, creating a copy of the data if other
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strings are still using it.
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<h3 class=fn>const <a href="qstring.html">QString</a> & <a name="string"></a>QConstString::string () const
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</h3>
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<p> Returns a constant string referencing the data passed during
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construction.
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">Qt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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</table></div></address></body>
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</html>
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