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Comparison operators against a raw pointer now accept different types

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[SVN r31110]
This commit is contained in:
Peter Dimov
2005-09-25 21:27:00 +00:00
parent c6a4e93a05
commit 7bfddbccf6
2 changed files with 22 additions and 22 deletions
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8
include/boost/intrusive_ptr.hpp
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@ -174,22 +174,22 @@ template<class T, class U> inline bool operator!=(intrusive_ptr<T> const & a, in
return a.get() != b.get(); return a.get() != b.get();
} }
template<class T> inline bool operator==(intrusive_ptr<T> const & a, T * b) template<class T, class U> inline bool operator==(intrusive_ptr<T> const & a, U * b)
{ {
return a.get() == b; return a.get() == b;
} }
template<class T> inline bool operator!=(intrusive_ptr<T> const & a, T * b) template<class T, class U> inline bool operator!=(intrusive_ptr<T> const & a, U * b)
{ {
return a.get() != b; return a.get() != b;
} }
template<class T> inline bool operator==(T * a, intrusive_ptr<T> const & b) template<class T, class U> inline bool operator==(T * a, intrusive_ptr<U> const & b)
{ {
return a == b.get(); return a == b.get();
} }
template<class T> inline bool operator!=(T * a, intrusive_ptr<T> const & b) template<class T, class U> inline bool operator!=(T * a, intrusive_ptr<U> const & b)
{ {
return a != b.get(); return a != b.get();
} }

36
intrusive_ptr.html
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@ -5,8 +5,8 @@
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head> </head>
<body text="#000000" bgColor="#ffffff"> <body text="#000000" bgColor="#ffffff">
<h1><IMG height="86" alt="boost.png (6897 bytes)" src="../../boost.png" width="277" align="middle">intrusive_ptr <h1><A href="../.."><IMG height="86" alt="boost.png (6897 bytes)" src="../../boost.png" width="277" align="middle"
class template</h1> border="0"></A>intrusive_ptr class template</h1>
<p> <p>
<A href="#Introduction">Introduction</A><br> <A href="#Introduction">Introduction</A><br>
<A href="#Synopsis">Synopsis</A><br> <A href="#Synopsis">Synopsis</A><br>
@ -31,11 +31,11 @@
<P>The main reasons to use <STRONG>intrusive_ptr</STRONG> are:</P> <P>The main reasons to use <STRONG>intrusive_ptr</STRONG> are:</P>
<UL> <UL>
<LI> <LI>
Some existing frameworks or OSes provide objects with embedded reference Some existing frameworks or OSes provide objects with embedded reference
counts;</LI> counts;
<LI> <LI>
The memory footprint of <STRONG>intrusive_ptr</STRONG> is the same as the The memory footprint of <STRONG>intrusive_ptr</STRONG>
corresponding raw pointer;</LI> is the same as the corresponding raw pointer;
<LI> <LI>
<STRONG>intrusive_ptr&lt;T&gt;</STRONG> can be constructed from an arbitrary <STRONG>intrusive_ptr&lt;T&gt;</STRONG> can be constructed from an arbitrary
raw pointer of type <STRONG>T *</STRONG>.</LI></UL> raw pointer of type <STRONG>T *</STRONG>.</LI></UL>
@ -196,26 +196,26 @@ intrusive_ptr &amp; operator=(T * r);</pre>
<p><b>Returns:</b> <code>a.get() != b.get()</code>.</p> <p><b>Returns:</b> <code>a.get() != b.get()</code>.</p>
<p><b>Throws:</b> nothing.</p> <p><b>Throws:</b> nothing.</p>
</blockquote> </blockquote>
<pre>template&lt;class T&gt; <pre>template&lt;class T, class U&gt;
bool operator==(intrusive_ptr&lt;T&gt; const &amp; a, T * b); // never throws</pre> bool operator==(intrusive_ptr&lt;T&gt; const &amp; a, U * b); // never throws</pre>
<blockquote> <blockquote>
<p><b>Returns:</b> <code>a.get() == b</code>.</p> <p><b>Returns:</b> <code>a.get() == b</code>.</p>
<p><b>Throws:</b> nothing.</p> <p><b>Throws:</b> nothing.</p>
</blockquote> </blockquote>
<pre>template&lt;class T&gt; <pre>template&lt;class T, class U&gt;
bool operator!=(intrusive_ptr&lt;T&gt; const &amp; a, T * b); // never throws</pre> bool operator!=(intrusive_ptr&lt;T&gt; const &amp; a, U * b); // never throws</pre>
<blockquote> <blockquote>
<p><b>Returns:</b> <code>a.get() != b</code>.</p> <p><b>Returns:</b> <code>a.get() != b</code>.</p>
<p><b>Throws:</b> nothing.</p> <p><b>Throws:</b> nothing.</p>
</blockquote> </blockquote>
<pre>template&lt;class T&gt; <pre>template&lt;class T, class U&gt;
bool operator==(T * a, intrusive_ptr&lt;T&gt; const &amp; b); // never throws</pre> bool operator==(T * a, intrusive_ptr&lt;U&gt; const &amp; b); // never throws</pre>
<blockquote> <blockquote>
<p><b>Returns:</b> <code>a == b.get()</code>.</p> <p><b>Returns:</b> <code>a == b.get()</code>.</p>
<p><b>Throws:</b> nothing.</p> <p><b>Throws:</b> nothing.</p>
</blockquote> </blockquote>
<pre>template&lt;class T&gt; <pre>template&lt;class T, class U&gt;
bool operator!=(T * a, intrusive_ptr&lt;T&gt; const &amp; b); // never throws</pre> bool operator!=(T * a, intrusive_ptr&lt;U&gt; const &amp; b); // never throws</pre>
<blockquote> <blockquote>
<p><b>Returns:</b> <code>a != b.get()</code>.</p> <p><b>Returns:</b> <code>a != b.get()</code>.</p>
<p><b>Throws:</b> nothing.</p> <p><b>Throws:</b> nothing.</p>
@ -278,9 +278,9 @@ intrusive_ptr &amp; operator=(T * r);</pre>
<p> <p>
$Date$</p> $Date$</p>
<p> <p>
<small>Copyright <20> 2003 Peter Dimov. Permission to copy, use, modify, sell and <small>Copyright <20> 2003-2005 Peter Dimov. Permission to copy, use, modify, sell and
distribute this document is granted provided this copyright notice appears in distribute this document is granted provided this copyright notice appears in
all copies. This document is provided "as is" without express or implied all copies. This document is provided "as is" without express or implied
warranty, and with no claim as to its suitability for any purpose.</small></p> warranty, and with no claim as to its suitability for any purpose.</small></p>
</body> </body>
</html> </html>