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+
+ <title>hash_standard_resize_policy Interface</title>
+ <meta http-equiv="Content-Type" content=
+ "text/html; charset=us-ascii" />
+ </head>
+
+<body>
+ <div id="page">
+ <h1><tt>hash_standard_resize_policy</tt> Interface</h1>
+
+ <p>A resize policy which delegates operations to size and
+ trigger policies.</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="Size_Policy1072992366" id=
+"Size_Policy1072992366"><b>class</b> Size_Policy </a>
+</pre>
+ </td>
+
+ <td>
+ <p>Size policy type.</p>
+ </td>
+
+ <td><a href=
+ "hash_exponential_size_policy.html"><span class="c2"><tt>hash_exponential_size_policy</tt></span></a></td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<a name="Trigger_Policy3611271815" id=
+"Trigger_Policy3611271815"><b>class</b> Trigger_Policy </a>
+</pre>
+ </td>
+
+ <td>
+ <p>Trigger policy type.</p>
+ </td>
+
+ <td><a href=
+ "hash_load_check_resize_trigger.html"><span class=
+ "c2"><tt>hash_load_check_resize_trigger</tt></span></a></td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<a name="External_Size_Access1380482982" id=
+"External_Size_Access1380482982"><b>bool</b> External_Size_Access </a>
+</pre>
+ </td>
+
+ <td>
+ <p>Indicates whether physical sizes can be accessed
+ externally.</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">Base Classes</a></h2>
+
+ <table class="c1" width="100%" border="1" summary="Bases">
+ <tr>
+ <td width="80%" align="left"><b>Class</b></td>
+
+ <td width="20%" align="left"><b>Derivation Type</b></td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<a href="#Size_Policy1072992366"><tt>Size_Policy</tt></a>
+</pre>
+ </td>
+
+ <td>
+ <p>public</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<a href="#Trigger_Policy3611271815"><tt>Trigger_Policy</tt></a>
+</pre>
+ </td>
+
+ <td>
+ <p>public</p>
+ </td>
+ </tr>
+ </table>
+
+ <h2><a name="link3" id="link3">Public Types and
+ Constants</a></h2>
+
+ <h3><a name="link4" id="link4">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>
+ </table>
+
+ <h3><a name="link5" id="link5">Policy 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="trigger_policy4019166151" id=
+"trigger_policy4019166151">trigger_policy</a>
+</pre>
+ </td>
+
+ <td>
+ <pre>
+<a href="#Trigger_Policy3611271815"><tt>Trigger_Policy</tt></a>
+</pre>
+ </td>
+
+ <td>
+ <p>Trigger policy type.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<a name="size_policy1385592366" id=
+"size_policy1385592366">size_policy</a>
+</pre>
+ </td>
+
+ <td>
+ <pre>
+<a href="#Size_Policy1072992366"><tt>Size_Policy</tt></a>
+</pre>
+ </td>
+
+ <td>
+ <p>Size policy type.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<a name="external_size_access4043083014" id=
+"external_size_access4043083014">external_size_access</a>
+</pre>
+ </td>
+
+ <td>
+ <pre>
+<a href=
+"#External_Size_Access1380482982"><tt>External_Size_Access</tt></a>
+</pre>
+ </td>
+
+ <td>
+ <p>Indicates whether sizes can be accessed
+ externally.</p>
+ </td>
+ </tr>
+ </table>
+
+ <h2><a name="link6" id="link6">Public Methods</a></h2>
+
+ <h3><a name="link7" id="link7">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>
+ hash_standard_resize_policy
+ ()
+</pre>
+ </td>
+
+ <td>
+ <p>Default constructor.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+ hash_standard_resize_policy
+ (<b>const</b> <a href=
+"#Size_Policy1072992366"><tt>Size_Policy</tt></a> &r_size_policy)
+</pre>
+ </td>
+
+ <td>
+ <p>constructor taking some policies <span class=
+ "c1"><tt>r_size_policy</tt></span> will be copied by the
+ <a href="#Size_Policy1072992366"><tt>Size_Policy</tt></a>
+ object of this object.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+ hash_standard_resize_policy
+ (<b>const</b> <a href=
+"#Size_Policy1072992366"><tt>Size_Policy</tt></a> &r_size_policy,
+ <b>const</b> <a href=
+"#Trigger_Policy3611271815"><tt>Trigger_Policy</tt></a> &r_trigger_policy)
+</pre>
+ </td>
+
+ <td>
+ <p>constructor taking some policies. <span class=
+ "c1"><tt>r_size_policy</tt></span> will be copied by the
+ <a href="#Size_Policy1072992366"><tt>Size_Policy</tt></a>
+ object of this object. <span class=
+ "c1"><tt>r_trigger_policy</tt></span> will be copied by
+ the <a href=
+ "#Trigger_Policy3611271815"><tt>Trigger_Policy</tt></a>
+ object of this object.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<b>virtual</b>
+ ~hash_standard_resize_policy
+ ()
+</pre>
+ </td>
+
+ <td>
+ <p>Destructor.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<b>inline</b> <b>void</b>
+ swap
+ (<span class=
+"c2"><tt>hash_standard_resize_policy</tt></span> &other)
+</pre>
+ </td>
+
+ <td>
+ <p>Swaps content.</p>
+ </td>
+ </tr>
+ </table>
+
+ <h3><a name="link8" id="link8">Policy Access Methods</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>
+<a href="#Size_Policy1072992366"><tt>Size_Policy</tt></a> &
+ get_size_policy
+ ()
+</pre>
+ </td>
+
+ <td>
+ <p>Access to the <a href=
+ "#Size_Policy1072992366"><tt>Size_Policy</tt></a> object
+ used.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<b>const</b> <a href=
+"#Size_Policy1072992366"><tt>Size_Policy</tt></a> &
+ get_size_policy
+ () <b>const</b>
+</pre>
+ </td>
+
+ <td>
+ <p>Const access to the <a href=
+ "#Size_Policy1072992366"><tt>Size_Policy</tt></a> object
+ used.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<a href=
+"#Trigger_Policy3611271815"><tt>Trigger_Policy</tt></a> &
+ get_trigger_policy
+ ()
+</pre>
+ </td>
+
+ <td>
+ <p>Access to the <a href=
+ "#Trigger_Policy3611271815"><tt>Trigger_Policy</tt></a>
+ object used.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<b>const</b> <a href=
+"#Trigger_Policy3611271815"><tt>Trigger_Policy</tt></a> &
+ get_trigger_policy
+ () <b>const</b>
+</pre>
+ </td>
+
+ <td>
+ <p>Access to the <a href=
+ "#Trigger_Policy3611271815"><tt>Trigger_Policy</tt></a>
+ object used.</p>
+ </td>
+ </tr>
+ </table>
+
+ <h3><a name="link9" id="link9">Size Access Methods</a></h3>
+
+ <p>These methods are available only if the external size
+ parameter indicates that external size access is allowed.</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> <a href="#size_type55424436"><tt>size_type</tt></a>
+ get_actual_size
+ () <b>const</b>
+</pre>
+ </td>
+
+ <td>
+ <p>Returns the actual size of the container.</p>
+
+ <p>This method returns the number of entries (used and
+ unused) in the container. It is different from the
+ container's size method, which returns the number of used
+ entries. Calling this method will not compile when
+ <a href=
+ "#External_Size_Access1380482982"><tt>External_Size_Access</tt></a>
+ == <tt><b>false</b></tt>.</p>
+ </td>
+ </tr>
+
+ <tr>
+ <td>
+ <pre>
+<b>void</b>
+ resize
+ (<a href=
+"#size_type55424436"><tt>size_type</tt></a> suggested_new_size)
+</pre>
+ </td>
+
+ <td>
+ <p>Resizes the container to <span class=
+ "c1"><tt>suggested_new_size</tt></span>, a suggested size
+ (the actual size will be determined by the <a href=
+ "#Size_Policy1072992366"><tt>Size_Policy</tt></a>
+ object).</p>
+
+ <p>Calling this method will not compile when <a href=
+ "#External_Size_Access1380482982"><tt>External_Size_Access</tt></a>
+ == <tt><b>false</b></tt>.</p>
+ </td>
+ </tr>
+ </table>
+
+ <h2><a name="link10" id="link10">Protected Methods</a></h2>
+
+ <h3><a name="link11" id="link11">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="link12" id="link12">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="link13" id="link13">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="link14" id="link14">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_e)
+</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_e)
+</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="link15" id="link15">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 to <span class=
+ "c1"><tt>new_size</tt></span>.</p>
+ </td>
+ </tr>
+ </table>
+
+ <h3><a name="link16" id="link16">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>
+<a href="#size_type55424436"><tt>size_type</tt></a>
+ get_new_size
+ (<a href="#size_type55424436"><tt>size_type</tt></a> size,
+ <a href=
+"#size_type55424436"><tt>size_type</tt></a> num_used_e) <b>const</b>
+</pre>
+ </td>
+
+ <td>
+ <p>Queries what the new <span class=
+ "c1"><tt>size</tt></span> should be, when the container
+ is resized naturally. The current size of the container
+ is <span class="c1"><tt>size</tt></span>, and the number
+ of used entries within the container is <span class=
+ "c1"><tt>num_used_e</tt></span>.</p>
+ </td>
+ </tr>
+ </table>
+
+ <h2><a name="link17" id="link17">Private Methods</a></h2>
+
+ <h3><a name="link18" id="link18">Overrides</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>
+<b>virtual</b> <b>void</b>
+ do_resize
+ (<a href="#size_type55424436"><tt>size_type</tt></a> new_size)
+</pre>
+ </td>
+
+ <td>
+ <p>Resizes to <span class=
+ "c1"><tt>new_size</tt></span>.</p>
+ </td>
+ </tr>
+ </table>
+ </div>
+</body>
+</html>
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