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9  <title>hash_prime_size_policy Interface</title>
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16    <h1><tt>hash_prime_size_policy</tt> Interface</h1>
17
18    <p>A size policy whose sequence of sizes form a
19    nearly-exponential sequence of primes.</p>
20
21    <p>Defined in: <a href=
22    "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>
23
24    <h2><a name="link1" id="link1">Public Types and
25    Constants</a></h2>
26
27    <h3><a name="link2" id="link2">General Definitions</a></h3>
28
29    <table class="c1" width="100%" border="1" summary="Types">
30      <tr>
31        <td width="30%" align="left"><b>Type</b></td>
32
33        <td width="55%" align="left"><b>Definition</b></td>
34
35        <td width="15%" align="left"><b>Description</b></td>
36      </tr>
37
38      <tr>
39        <td>
40          <pre>
41<a name="size_type55424436" id="size_type55424436">size_type</a>
42</pre>
43        </td>
44
45        <td>
46          <pre>
47size_t
48</pre>
49        </td>
50
51        <td>
52          <p>Size type.</p>
53        </td>
54      </tr>
55    </table>
56
57    <h2><a name="link3" id="link3">Public Methods</a></h2>
58
59    <h3><a name="link4" id="link4">Constructors, Destructor, and
60    Related</a></h3>
61
62    <table class="c1" width="100%" border="1" summary="Methods">
63      <tr>
64        <td width="45%" align="left"><b>Method</b></td>
65
66        <td width="55%" align="left"><b>Description</b></td>
67      </tr>
68
69      <tr>
70        <td>
71          <pre>
72  hash_prime_size_policy
73  (<a href=
74"#size_type55424436"><tt>size_type</tt></a> start_size = 8)
75</pre>
76        </td>
77
78        <td>
79          <p>Default constructor, or constructor taking a
80          <span class="c1"><tt>start_size</tt></span> The policy
81          will use the sequence of sizes approximately <span class=
82          "c1"><tt>start_size</tt></span>, <span class=
83          "c1"><tt>start_size</tt></span> * 2, <span class=
84          "c1"><tt>start_size</tt></span> * 2^2, ...</p>
85        </td>
86      </tr>
87
88      <tr>
89        <td>
90          <pre>
91<b>inline</b> <b>void</b>
92  swap
93  (<span class=
94"c2"><tt>hash_prime_size_policy</tt></span> &amp;other)
95</pre>
96        </td>
97
98        <td>
99          <p>Swaps content.</p>
100        </td>
101      </tr>
102    </table>
103
104    <h2><a name="link5" id="link5">Protected Methods</a></h2>
105
106    <h3><a name="link6" id="link6">Size methods</a></h3>
107
108    <table class="c1" width="100%" border="1" summary="Methods">
109      <tr>
110        <td width="45%" align="left"><b>Method</b></td>
111
112        <td width="55%" align="left"><b>Description</b></td>
113      </tr>
114
115      <tr>
116        <td>
117          <pre>
118<a href="#size_type55424436"><tt>size_type</tt></a>
119  get_nearest_larger_size
120  (<a href=
121"#size_type55424436"><tt>size_type</tt></a> size) <b>const</b>
122</pre>
123        </td>
124
125        <td>
126          <p>Given a size <span class="c1"><tt>size</tt></span>,
127          returns a size that is larger.</p>
128        </td>
129      </tr>
130
131      <tr>
132        <td>
133          <pre>
134<a href="#size_type55424436"><tt>size_type</tt></a>
135  get_nearest_smaller_size
136  (<a href=
137"#size_type55424436"><tt>size_type</tt></a> size) <b>const</b>
138</pre>
139        </td>
140
141        <td>
142          <p>Given a size <span class="c1"><tt>size</tt></span>,
143          returns a size that is smaller.</p>
144        </td>
145      </tr>
146    </table>
147  </div>
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