<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta name="generator" content=
"HTML Tidy for Linux/x86 (vers 12 April 2005), see www.w3.org" />
<title>cc_hash_max_collision_check_resize_trigger
Interface</title>
<meta http-equiv="Content-Type" content=
"text/html; charset=us-ascii" />
</head>
<body>
<div id="page">
<h1><tt>cc_hash_max_collision_check_resize_trigger</tt>
Interface</h1>
<p>A resize trigger policy based on collision checks. It keeps
the simulated load factor lower than some given load
factor.</p>
<p>Defined in: <a href=
"http://gcc.gnu.org/viewcvs/*checkout*/trunk/libstdc%2B%2B-v3/include/ext/pb_ds/hash_policy.hpp"><tt>hash_policy.hpp</tt></a></p>
<h2><a name="link1" id="link1">Template Parameters</a></h2>
<table class="c1" width="100%" border="1" summary=
"Template Parameters">
<tr>
<td width="20%" align="left"><b>Parameter</b></td>
<td width="50%" align="left"><b>Description</b></td>
<td width="30%" align="left"><b>Default Value</b></td>
</tr>
<tr>
<td>
<pre>
<a name="External_Load_Access1313998607" id=
"External_Load_Access1313998607"><b>bool</b> External_Load_Access </a>
</pre>
</td>
<td>
<p>Specifies whether the load factor can be accessed
externally. The two options have different trade-offs in
terms of flexibility, genericity, and encapsulation.</p>
</td>
<td><tt><b>false</b></tt></td>
</tr>
<tr>
<td>
<pre>
<a name="Size_Type42920436" id=
"Size_Type42920436"><b>typename</b> Size_Type </a>
</pre>
</td>
<td>
<p>Size type.</p>
</td>
<td>size_t</td>
</tr>
</table>
<h2><a name="link2" id="link2">Public Types and
Constants</a></h2>
<h3><a name="link3" id="link3">General Definitions</a></h3>
<table class="c1" width="100%" border="1" summary="Types">
<tr>
<td width="30%" align="left"><b>Type</b></td>
<td width="55%" align="left"><b>Definition</b></td>
<td width="15%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<a name="size_type55424436" id="size_type55424436">size_type</a>
</pre>
</td>
<td>
<pre>
<a href="#Size_Type42920436"><tt>Size_Type</tt></a>
</pre>
</td>
<td>
<p>Size type.</p>
</td>
</tr>
<tr>
<td>
<pre>
<a name="external_load_access3976598639" id=
"external_load_access3976598639">external_load_access</a>
</pre>
</td>
<td>
<pre>
<a href=
"#External_Load_Access1313998607"><tt>External_Load_Access</tt></a>
</pre>
</td>
<td>
<p>Indicates whether loads can be accessed externally</p>
</td>
</tr>
</table>
<h2><a name="link4" id="link4">Public Methods</a></h2>
<h3><a name="link5" id="link5">Constructors, Destructor, and
Related</a></h3>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
cc_hash_max_collision_check_resize_trigger
(float load = 0.5)
</pre>
</td>
<td>
<p>Default constructor, or constructor taking
<span class="c1"><tt>load</tt></span>, a load factor
which it will attempt to maintain.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>void</b>
swap
(<span class=
"c2"><tt>cc_hash_max_collision_check_resize_trigger</tt></span> &other)
</pre>
</td>
<td>
<p>Swaps content.</p>
</td>
</tr>
</table>
<h3><a name="link6" id="link6">Load Access Methods</a></h3>
<p>These methods are only available if the external access
parameter is set.</p>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> float
get_load
() <b>const</b>
</pre>
</td>
<td>
<p>Returns the current load.</p>
<p>Calling this method will not compile when <a href=
"#External_Load_Access1313998607"><tt>External_Load_Access</tt></a>
== <tt><b>false</b></tt>.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>void</b>
set_load
(float load)
</pre>
</td>
<td>
<p>Sets the <span class="c1"><tt>load</tt></span>; does
not resize the container.</p>
<p>It is the responsibility of the user to pass an
appropriate <span class="c1"><tt>load</tt></span> to this
function. Calling this method will not compile when
<a href=
"#External_Load_Access1313998607"><tt>External_Load_Access</tt></a>
== <tt><b>false</b></tt>.</p>
</td>
</tr>
</table>
<h2><a name="link7" id="link7">Protected Methods</a></h2>
<h3><a name="link8" id="link8">Insert Search
Notifications.</a></h3>
<p>Notifications called during an insert operation.</p>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_insert_search_start
()
</pre>
</td>
<td>
<p>Notifies a search started.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_insert_search_collision
()
</pre>
</td>
<td>
<p>Notifies a search encountered a collision.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_insert_search_end
()
</pre>
</td>
<td>
<p>Notifies a search ended.</p>
</td>
</tr>
</table>
<h3><a name="link9" id="link9">Find Search
Notifications.</a></h3>
<p>Notifications called during a find operation.</p>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_find_search_start
()
</pre>
</td>
<td>
<p>Notifies a search started.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_find_search_collision
()
</pre>
</td>
<td>
<p>Notifies a search encountered a collision.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_find_search_end
()
</pre>
</td>
<td>
<p>Notifies a search ended.</p>
</td>
</tr>
</table>
<h3><a name="link10" id="link10">Erase Search
Notifications.</a></h3>
<p>Notifications called during an insert operation.</p>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_erase_search_start
()
</pre>
</td>
<td>
<p>Notifies a search started.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_erase_search_collision
()
</pre>
</td>
<td>
<p>Notifies a search encountered a collision.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_erase_search_end
()
</pre>
</td>
<td>
<p>Notifies a search ended.</p>
</td>
</tr>
</table>
<h3><a name="link11" id="link11">Content Change
Notifications</a></h3>
<p>Notifications called when the content of the table changes
in a way that can affect the resize policy.</p>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_inserted
(<a href="#size_type55424436"><tt>size_type</tt></a> num_entries)
</pre>
</td>
<td>
<p>Notifies an element was inserted.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>void</b>
notify_erased
(<a href="#size_type55424436"><tt>size_type</tt></a> num_entries)
</pre>
</td>
<td>
<p>Notifies an element was erased.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>void</b>
notify_cleared
()
</pre>
</td>
<td>
<p>Notifies the table was cleared.</p>
</td>
</tr>
</table>
<h3><a name="link12" id="link12">Size Change
Notifications</a></h3>
<p>Notifications called when the table changes size.</p>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>void</b>
notify_resized
(<a href="#size_type55424436"><tt>size_type</tt></a> new_size)
</pre>
</td>
<td>
<p>Notifies the table was resized as a result of this
object's signifying that a resize is needed.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>void</b>
notify_externally_resized
(<a href="#size_type55424436"><tt>size_type</tt></a> new_size)
</pre>
</td>
<td>
<p>Notifies the table was resized externally.</p>
</td>
</tr>
</table>
<h3><a name="link13" id="link13">Queries</a></h3>
<p>Called to query whether/how to resize.</p>
<table class="c1" width="100%" border="1" summary="Methods">
<tr>
<td width="45%" align="left"><b>Method</b></td>
<td width="55%" align="left"><b>Description</b></td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>bool</b>
is_resize_needed
() <b>const</b>
</pre>
</td>
<td>
<p>Queries whether a resize is needed.</p>
</td>
</tr>
<tr>
<td>
<pre>
<b>inline</b> <b>bool</b>
is_grow_needed
(<a href=
"#size_type55424436"><tt>size_type</tt></a> size, <a href=
"#size_type55424436"><tt>size_type</tt></a> num_entries) <b>const</b>
</pre>
</td>
<td>
<p>Queries whether a grow is needed.</p>
<p>This method is called only if this object indicated is
needed.</p>
</td>
</tr>
</table>
</div>
</body>
</html>
