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<title>Aspell Developer’s Manual: Smart Pointers</title>
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Next: <a href="I_002fO.html#I_002fO" accesskey="n" rel="next">I/O</a>, Previous: <a href="Strings.html#Strings" accesskey="p" rel="prev">Strings</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p>
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<a name="Smart-Pointers-1"></a>
<h2 class="chapter">8 Smart Pointers</h2>
<p>Smart pointers are used extensively in Aspell to
simplify memory management tasks and to avoid memory leaks.
</p>
<a name="CopyPtr"></a>
<h3 class="section">8.1 CopyPtr</h3>
<p>The <code>CopyPtr</code> class makes a deep copy of an object whenever it is
copied. The <code>CopyPtr</code> class is defined in <samp>copy_ptr.hpp</samp>.
This header should be included wherever <code>CopyPtr</code> is used. The
complete definition of the object <code>CopyPtr</code> is pointing to does
not need to be defined at this point. The implementation is defined
in <samp>copy_ptr-t.hpp</samp>. The implementation header file should be
included at a point in your code where the class <code>CopyPtr</code> is
pointing to is completely defined.
</p>
<a name="ClonePtr"></a>
<h3 class="section">8.2 ClonePtr</h3>
<p><code>ClonePtr</code> is like copy pointer except the <code>clone()</code> method
is used instead of the copy constructor to make copies of an object.
If is defined in <samp>clone_ptr.hpp</samp> and implemented in
<samp>clone_ptr-t.hpp</samp>.
</p>
<a name="StackPtr"></a>
<h3 class="section">8.3 StackPtr</h3>
<p>A <code>StackPtr</code> is designed to be used whenever the only pointer to
a new object allocated with <code>new</code> is on the stack. It is
similar to the standard C++ <code>auto_ptr</code> but the semantics are a
bit different. It is defined in <samp>stack_ptr.hpp</samp> — unlike
<code>CopyPtr</code> or <code>ClonePtr</code> it is defined and implemented in
this header file.
</p>
<a name="GenericCopyPtr"></a>
<h3 class="section">8.4 GenericCopyPtr</h3>
<p>A generalized version of <code>CopyPtr</code> and <code>ClonePtr</code> which the
two are based on. It is defined in <samp>generic_copy_ptr.hpp</samp> and
implemented in <samp>generic_copy_ptr-t.hpp</samp>.
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