1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Man power</title> 5<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../index.html" title="Chapter 1. Boost.Icl"> 8<link rel="up" href="../examples.html" title="Examples"> 9<link rel="prev" href="time_grids.html" title="Time grids for months and weeks"> 10<link rel="next" href="user_groups.html" title="User groups"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="time_grids.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../examples.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="user_groups.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h3 class="title"> 27<a name="boost_icl.examples.man_power"></a><a class="link" href="man_power.html" title="Man power">Man power</a> 28</h3></div></div></div> 29<p> 30 <code class="computeroutput"><a class="link" href="../../boost/icl/interval_set.html" title="Class template interval_set">Interval_sets</a></code> and 31 <code class="computeroutput"><a class="link" href="../../boost/icl/interval_map.html" title="Class template interval_map">interval_maps</a></code> can be 32 filled and manipulated using set style operations such as union <code class="computeroutput"><span class="special">+=</span></code>, difference <code class="computeroutput"><span class="special">-=</span></code> 33 and intersection <code class="computeroutput"><span class="special">&=</span></code>. 34 </p> 35<p> 36 In this example <span class="bold"><strong>man power</strong></span> a number of those 37 operations are demonstrated in the process of calculation the available working 38 times (man-power) of a company's employees accounting for weekends, holidays, 39 sickness times and vacations. 40 </p> 41<p> 42</p> 43<pre class="programlisting"><span class="comment">// The next line includes <boost/gregorian/date.hpp></span> 44<span class="comment">// and a few lines of adapter code.</span> 45<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">icl</span><span class="special">/</span><span class="identifier">gregorian</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 46<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> 47<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">icl</span><span class="special">/</span><span class="identifier">discrete_interval</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 48<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">icl</span><span class="special">/</span><span class="identifier">interval_map</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 49 50<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">std</span><span class="special">;</span> 51<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">gregorian</span><span class="special">;</span> 52<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">icl</span><span class="special">;</span> 53 54 55<span class="comment">// Function weekends returns the interval_set of weekends that are contained in</span> 56<span class="comment">// the date interval 'scope'</span> 57<span class="identifier">interval_set</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">weekends</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>&</span> <span class="identifier">scope</span><span class="special">)</span> 58<span class="special">{</span> 59 <span class="identifier">interval_set</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">weekends</span><span class="special">;</span> 60 61 <span class="identifier">date</span> <span class="identifier">cur_weekend_sat</span> 62 <span class="special">=</span> <span class="identifier">first</span><span class="special">(</span><span class="identifier">scope</span><span class="special">)</span> 63 <span class="special">+</span> <span class="identifier">days</span><span class="special">(</span><span class="identifier">days_until_weekday</span><span class="special">(</span><span class="identifier">first</span><span class="special">(</span><span class="identifier">scope</span><span class="special">),</span> <span class="identifier">greg_weekday</span><span class="special">(</span><span class="identifier">Saturday</span><span class="special">)))</span> 64 <span class="special">-</span> <span class="identifier">weeks</span><span class="special">(</span><span class="number">1</span><span class="special">);</span> 65 <span class="identifier">week_iterator</span> <span class="identifier">week_iter</span><span class="special">(</span><span class="identifier">cur_weekend_sat</span><span class="special">);</span> 66 67 <span class="keyword">for</span><span class="special">(;</span> <span class="identifier">week_iter</span> <span class="special"><=</span> <span class="identifier">last</span><span class="special">(</span><span class="identifier">scope</span><span class="special">);</span> <span class="special">++</span><span class="identifier">week_iter</span><span class="special">)</span> 68 <span class="identifier">weekends</span> <span class="special">+=</span> <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(*</span><span class="identifier">week_iter</span><span class="special">,</span> <span class="special">*</span><span class="identifier">week_iter</span> <span class="special">+</span> <span class="identifier">days</span><span class="special">(</span><span class="number">2</span><span class="special">));</span> 69 70 <span class="identifier">weekends</span> <span class="special">&=</span> <span class="identifier">scope</span><span class="special">;</span> <span class="comment">// cut off the surplus</span> 71 72 <span class="keyword">return</span> <span class="identifier">weekends</span><span class="special">;</span> 73<span class="special">}</span> 74 75<span class="comment">// The available working time for the employees of a company is calculated</span> 76<span class="comment">// for a period of 3 months accounting for weekends and holidays.</span> 77<span class="comment">// The available daily working time for the employees is calculated</span> 78<span class="comment">// using interval_sets and interval_maps demonstrating a number of</span> 79<span class="comment">// addition, subtraction and intersection operations.</span> 80<span class="keyword">void</span> <span class="identifier">man_power</span><span class="special">()</span> 81<span class="special">{</span> 82 <span class="identifier">date</span> <span class="identifier">someday</span> <span class="special">=</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-08-01"</span><span class="special">);</span> 83 <span class="identifier">date</span> <span class="identifier">thenday</span> <span class="special">=</span> <span class="identifier">someday</span> <span class="special">+</span> <span class="identifier">months</span><span class="special">(</span><span class="number">3</span><span class="special">);</span> 84 85 <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">scope</span> <span class="special">=</span> <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="identifier">someday</span><span class="special">,</span> <span class="identifier">thenday</span><span class="special">);</span> 86 87 <span class="comment">// ------------------------------------------------------------------------</span> 88 <span class="comment">// (1) In a first step, the regular working times are computed for the</span> 89 <span class="comment">// company within the given scope. From all available days, the weekends</span> 90 <span class="comment">// and holidays have to be subtracted: </span> 91 <span class="identifier">interval_set</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">worktime</span><span class="special">(</span><span class="identifier">scope</span><span class="special">);</span> 92 <span class="comment">// Subtract the weekends</span> 93 <span class="identifier">worktime</span> <span class="special">-=</span> <span class="identifier">weekends</span><span class="special">(</span><span class="identifier">scope</span><span class="special">);</span> 94 <span class="comment">// Subtract holidays</span> 95 <span class="identifier">worktime</span> <span class="special">-=</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-10-03"</span><span class="special">);</span> <span class="comment">//German reunification ;)</span> 96 97 <span class="comment">// company holidays (fictitious ;)</span> 98 <span class="identifier">worktime</span> <span class="special">-=</span> <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-08-18"</span><span class="special">),</span> 99 <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-08-22"</span><span class="special">));</span> 100 101 <span class="comment">//-------------------------------------------------------------------------</span> 102 <span class="comment">// (2) Now we calculate the individual work times for some employees</span> 103 <span class="comment">//-------------------------------------------------------------------------</span> 104 <span class="comment">// In the company works Claudia. </span> 105 <span class="comment">// This is the map of her regular working times:</span> 106 <span class="identifier">interval_map</span><span class="special"><</span><span class="identifier">date</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">claudias_working_hours</span><span class="special">;</span> 107 108 <span class="comment">// Claudia is working 8 hours a day. So the next statement says</span> 109 <span class="comment">// that every day in the whole scope is mapped to 8 hours worktime.</span> 110 <span class="identifier">claudias_working_hours</span> <span class="special">+=</span> <span class="identifier">make_pair</span><span class="special">(</span><span class="identifier">scope</span><span class="special">,</span> <span class="number">8</span><span class="special">);</span> 111 112 <span class="comment">// But Claudia only works 8 hours on regular working days so we do</span> 113 <span class="comment">// an intersection of the interval_map with the interval_set worktime:</span> 114 <span class="identifier">claudias_working_hours</span> <span class="special">&=</span> <span class="identifier">worktime</span><span class="special">;</span> 115 116 <span class="comment">// Yet, in addition Claudia has her own absence times like</span> 117 <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">claudias_seminar</span> <span class="special">(</span><span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-09-16"</span><span class="special">),</span> 118 <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-09-24"</span><span class="special">),</span> 119 <span class="identifier">interval_bounds</span><span class="special">::</span><span class="identifier">closed</span><span class="special">());</span> 120 <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">claudias_vacation</span><span class="special">(</span><span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-08-01"</span><span class="special">),</span> 121 <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-08-14"</span><span class="special">),</span> 122 <span class="identifier">interval_bounds</span><span class="special">::</span><span class="identifier">closed</span><span class="special">());</span> 123 124 <span class="identifier">interval_set</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">claudias_absence_times</span><span class="special">(</span><span class="identifier">claudias_seminar</span><span class="special">);</span> 125 <span class="identifier">claudias_absence_times</span> <span class="special">+=</span> <span class="identifier">claudias_vacation</span><span class="special">;</span> 126 127 <span class="comment">// All the absence times have to subtracted from the map of her working times</span> 128 <span class="identifier">claudias_working_hours</span> <span class="special">-=</span> <span class="identifier">claudias_absence_times</span><span class="special">;</span> 129 130 <span class="comment">//-------------------------------------------------------------------------</span> 131 <span class="comment">// Claudia's boss is Bodo. He only works part time. </span> 132 <span class="comment">// This is the map of his regular working times:</span> 133 <span class="identifier">interval_map</span><span class="special"><</span><span class="identifier">date</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">bodos_working_hours</span><span class="special">;</span> 134 135 <span class="comment">// Bodo is working 4 hours a day.</span> 136 <span class="identifier">bodos_working_hours</span> <span class="special">+=</span> <span class="identifier">make_pair</span><span class="special">(</span><span class="identifier">scope</span><span class="special">,</span> <span class="number">4</span><span class="special">);</span> 137 138 <span class="comment">// Bodo works only on regular working days</span> 139 <span class="identifier">bodos_working_hours</span> <span class="special">&=</span> <span class="identifier">worktime</span><span class="special">;</span> 140 141 <span class="comment">// Bodos additional absence times</span> 142 <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">bodos_flu</span><span class="special">(</span><span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-09-19"</span><span class="special">),</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-09-29"</span><span class="special">),</span> 143 <span class="identifier">interval_bounds</span><span class="special">::</span><span class="identifier">closed</span><span class="special">());</span> 144 <span class="identifier">discrete_interval</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">bodos_vacation</span><span class="special">(</span><span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-08-15"</span><span class="special">),</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-09-03"</span><span class="special">),</span> 145 <span class="identifier">interval_bounds</span><span class="special">::</span><span class="identifier">closed</span><span class="special">());</span> 146 147 <span class="identifier">interval_set</span><span class="special"><</span><span class="identifier">date</span><span class="special">></span> <span class="identifier">bodos_absence_times</span><span class="special">(</span><span class="identifier">bodos_flu</span><span class="special">);</span> 148 <span class="identifier">bodos_absence_times</span> <span class="special">+=</span> <span class="identifier">bodos_vacation</span><span class="special">;</span> 149 150 <span class="comment">// All the absence times have to be subtracted from the map of his working times</span> 151 <span class="identifier">bodos_working_hours</span> <span class="special">-=</span> <span class="identifier">bodos_absence_times</span><span class="special">;</span> 152 153 <span class="comment">//-------------------------------------------------------------------------</span> 154 <span class="comment">// (3) Finally we want to calculate the available manpower of the company</span> 155 <span class="comment">// for the selected time scope: This is done by adding up the employees</span> 156 <span class="comment">// working time maps:</span> 157 <span class="identifier">interval_map</span><span class="special"><</span><span class="identifier">date</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">manpower</span><span class="special">;</span> 158 <span class="identifier">manpower</span> <span class="special">+=</span> <span class="identifier">claudias_working_hours</span><span class="special">;</span> 159 <span class="identifier">manpower</span> <span class="special">+=</span> <span class="identifier">bodos_working_hours</span><span class="special">;</span> 160 161 162 <span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">first</span><span class="special">(</span><span class="identifier">scope</span><span class="special">)</span> <span class="special"><<</span> <span class="string">" - "</span> <span class="special"><<</span> <span class="identifier">last</span><span class="special">(</span><span class="identifier">scope</span><span class="special">)</span> 163 <span class="special"><<</span> <span class="string">" available man-power:"</span> <span class="special"><<</span> <span class="identifier">endl</span><span class="special">;</span> 164 <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"---------------------------------------------------------------\n"</span><span class="special">;</span> 165 166 <span class="keyword">for</span><span class="special">(</span><span class="identifier">interval_map</span><span class="special"><</span><span class="identifier">date</span><span class="special">,</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">iterator</span> <span class="identifier">it</span> <span class="special">=</span> <span class="identifier">manpower</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> 167 <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">manpower</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span> <span class="identifier">it</span><span class="special">++)</span> 168 <span class="special">{</span> 169 <span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">first</span><span class="special">(</span><span class="identifier">it</span><span class="special">-></span><span class="identifier">first</span><span class="special">)</span> <span class="special"><<</span> <span class="string">" - "</span> <span class="special"><<</span> <span class="identifier">last</span><span class="special">(</span><span class="identifier">it</span><span class="special">-></span><span class="identifier">first</span><span class="special">)</span> 170 <span class="special"><<</span> <span class="string">" -> "</span> <span class="special"><<</span> <span class="identifier">it</span><span class="special">-></span><span class="identifier">second</span> <span class="special"><<</span> <span class="identifier">endl</span><span class="special">;</span> 171 <span class="special">}</span> 172<span class="special">}</span> 173 174<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> 175<span class="special">{</span> 176 <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">">>Interval Container Library: Sample man_power.cpp <<\n"</span><span class="special">;</span> 177 <span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"---------------------------------------------------------------\n"</span><span class="special">;</span> 178 <span class="identifier">man_power</span><span class="special">();</span> 179 <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> 180<span class="special">}</span> 181 182<span class="comment">// Program output:</span> 183<span class="comment">/* 184>>Interval Container Library: Sample man_power.cpp << 185--------------------------------------------------------------- 1862008-Aug-01 - 2008-Oct-31 available man-power: 187--------------------------------------------------------------- 1882008-Aug-01 - 2008-Aug-01 -> 4 1892008-Aug-04 - 2008-Aug-08 -> 4 1902008-Aug-11 - 2008-Aug-14 -> 4 1912008-Aug-15 - 2008-Aug-15 -> 8 1922008-Aug-25 - 2008-Aug-29 -> 8 1932008-Sep-01 - 2008-Sep-03 -> 8 1942008-Sep-04 - 2008-Sep-05 -> 12 1952008-Sep-08 - 2008-Sep-12 -> 12 1962008-Sep-15 - 2008-Sep-15 -> 12 1972008-Sep-16 - 2008-Sep-18 -> 4 1982008-Sep-25 - 2008-Sep-26 -> 8 1992008-Sep-29 - 2008-Sep-29 -> 8 2002008-Sep-30 - 2008-Oct-02 -> 12 2012008-Oct-06 - 2008-Oct-10 -> 12 2022008-Oct-13 - 2008-Oct-17 -> 12 2032008-Oct-20 - 2008-Oct-24 -> 12 2042008-Oct-27 - 2008-Oct-31 -> 12 205*/</span> 206</pre> 207<p> 208 </p> 209</div> 210<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 211<td align="left"></td> 212<td align="right"><div class="copyright-footer">Copyright © 2007-2010 Joachim 213 Faulhaber<br>Copyright © 1999-2006 Cortex Software 214 GmbH<p> 215 Distributed under the Boost Software License, Version 1.0. (See accompanying 216 file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 217 </p> 218</div></td> 219</tr></table> 220<hr> 221<div class="spirit-nav"> 222<a accesskey="p" href="time_grids.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../examples.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="user_groups.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 223</div> 224</body> 225</html> 226
