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Boost-Commit : |
Subject: [Boost-commit] svn:boost r72609 - in sandbox/bloom_filter/trunk/libs/bloom_filter: doc/html example
From: cpp.cabrera_at_[hidden]
Date: 2011-06-15 20:57:22
Author: alejandro
Date: 2011-06-15 20:57:21 EDT (Wed, 15 Jun 2011)
New Revision: 72609
URL: http://svn.boost.org/trac/boost/changeset/72609
Log:
Updated acknowledgements and history. Testing needs a lot of work. Added an example.
Added:
sandbox/bloom_filter/trunk/libs/bloom_filter/example/custom_hash.cpp (contents, props changed)
Removed:
sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/testing.html
Text files modified:
sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/acknowledgements.html | 8 ++++++--
sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/history.html | 16 ++++++++++++++--
2 files changed, 20 insertions(+), 4 deletions(-)
Modified: sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/acknowledgements.html
==============================================================================
--- sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/acknowledgements.html (original)
+++ sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/acknowledgements.html 2011-06-15 20:57:21 EDT (Wed, 15 Jun 2011)
@@ -32,7 +32,11 @@
</a>
</div>
- <h1 class="title">To be completed...</h1>
+ <h1 class="title">Acknowledgements</h1>
+ <ul>
+ <li>Vicente J. Botet Escribá - for providing me with guidance throughout the project, including guidance on Boost standards compliance, Boost process, and on interface design.</li>
+ <li>Google - for hosting the Google Summer of Code program and making it possible for me to participate in an open-source project.</li>
+ </ul>
<hr/>
<div class="spirit-nav">
@@ -46,7 +50,7 @@
<footer>
<p>
- Last revised: <time datetime="2011-06-14">June 14, 2011</time>.
+ Last revised: <time datetime="2011-06-15">June 15, 2011</time>.
</p>
<p class="copyright">
Modified: sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/history.html
==============================================================================
--- sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/history.html (original)
+++ sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/history.html 2011-06-15 20:57:21 EDT (Wed, 15 Jun 2011)
@@ -35,7 +35,19 @@
</a>
</div>
- <h1 class="title">To be completed...</h1>
+ <h1 class="title">Version history</h1>
+ <h2>v1.0</h2>
+ <ul>
+ <li>Initial release.</li>
+ <li>Features:
+ <ul>
+ <li>Basic Bloom filter class</li>
+ <li>One hasher object implemented based on Boost.Functional hash</li>
+ <li>Various examples: basic, advanced, url, string, custom_hasher</li>
+ <li>A test-suite that covers all basic functionality.</li>
+ </ul>
+ </li>
+ </ul>
<hr/>
<div class="spirit-nav">
@@ -52,7 +64,7 @@
<footer>
<p>
- Last revised: <time datetime="2011-06-06">June 6, 2011</time>.
+ Last revised: <time datetime="2011-06-15">June 15, 2011</time>.
</p>
<p class="copyright">
Deleted: sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/testing.html
==============================================================================
--- sandbox/bloom_filter/trunk/libs/bloom_filter/doc/html/testing.html 2011-06-15 20:57:21 EDT (Wed, 15 Jun 2011)
+++ (empty file)
@@ -1,73 +0,0 @@
-<!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
- <link rel="stylesheet" type="text/css"
- href="../../../../doc/src/boostbook.css"/>
- <link rel="stylesheet" type="text/css" href="style/my.css"/>
-
- <title>Boost.BloomFilter</title>
- </head>
-
- <body>
- <header>
- <img src="../../../../boost.png" width="277" height="86"
- alt="Boost C++ Libraries"/>
- <p>
- Home
- Libraries
- People
- FAQ
- More
- </p>
- </header>
-
- <hr/>
- <div class="spirit-nav">
- <a accesskey="p" href="reference/hash/default.html">
- <img src="../../../../doc/src/images/prev.png" alt="Prev"/>
- </a>
- <a accesskey="h" href="index.html">
- <img src="../../../../doc/src/images/home.png" alt="Home"/>
- </a>
- <a accesskey="n" href="bibliography.html">
- <img src="../../../../doc/src/images/next.png" alt="Next"/>
- </a>
- </div>
-
- <h1 class="title">To be completed...</h1>
-
- <hr/>
- <div class="spirit-nav">
- <a accesskey="p" href="reference/hash/default.html">
- <img src="../../../../doc/src/images/prev.png" alt="Prev"/>
- </a>
- <a accesskey="h" href="index.html">
- <img src="../../../../doc/src/images/home.png" alt="Home"/>
- </a>
- <a accesskey="n" href="bibliography.html">
- <img src="../../../../doc/src/images/next.png" alt="Next"/>
- </a>
- </div>
-
- <footer>
- <p>
- Last revised: <time datetime="2011-06-14">June 14, 2011</time>.
- </p>
-
- <p class="copyright">
- Copyright © 2011
- <a href="mailto:cpp.cabrera_at_[hidden]">Alejandro Cabrera</a>
- </p>
-
- <p class="copyright">
- Distributed under the Boost Software License, Version 1.0. (See
- accompanying file
- LICENSE_1_0.txt or
- copy at
- http://www.boost.org/LICENSE_1_0.txt)
- </p>
- </footer>
-
- </body>
-</html>
Added: sandbox/bloom_filter/trunk/libs/bloom_filter/example/custom_hash.cpp
==============================================================================
--- (empty file)
+++ sandbox/bloom_filter/trunk/libs/bloom_filter/example/custom_hash.cpp 2011-06-15 20:57:21 EDT (Wed, 15 Jun 2011)
@@ -0,0 +1,80 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Alejandro Cabrera 2011.
+// Distributed under the Boost
+// Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or
+// copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/bloom_filter for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+// example demonstrating how to overload default hash function
+// in order to support user-defined type
+#include <boost/bloom_filter/bloom.hpp>
+#include <sstream>
+#include <string>
+#include <iostream>
+using namespace boost::bloom_filter;
+using namespace std;
+
+class URL {
+public:
+ URL() : _data() {}
+ explicit URL(const string& url) : _data(url) {}
+
+ const string data() const {
+ return _data;
+ }
+private:
+ string _data;
+};
+
+// provide an overload for your class
+// alternatively, implement own Hasher that can handle your type
+namespace boost {
+ namespace bloom_filter {
+ template <size_t Seed>
+ struct boost_hash<URL, Seed> {
+ size_t operator()(const URL& t) {
+ return boost::hash_value(t.data()) + Seed;
+ }
+ };
+ }
+}
+
+const URL gen_url(const size_t num)
+{
+ static const string start_url("https://www.");
+ static const string end_url(".com/");
+ static stringstream stringer;
+ string result;
+
+ stringer << num;
+ stringer >> result;
+ stringer.clear();
+
+ return URL(start_url + result + end_url);
+}
+
+int main () {
+ static const size_t INSERT_MAX = 5000;
+ static const size_t CONTAINS_MAX = 10000;
+ static const size_t NUM_BITS = 32768; // 8KB
+
+ bloom_filter<URL, NUM_BITS> bloom;
+ size_t collisions = 0;
+
+ for (size_t i = 0; i < INSERT_MAX; ++i) {
+ bloom.insert(gen_url(i));
+ }
+
+ for (size_t i = INSERT_MAX; i < CONTAINS_MAX; ++i) {
+ if (bloom.contains(gen_url(i))) ++collisions;
+ }
+
+ cout << "collisions: " << collisions << endl;
+
+ return 0;
+}
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