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49 lines
2.4 KiB
HTML
49 lines
2.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
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<title>Example Documentation</title>
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<link href="doxygen.css" rel="stylesheet" type="text/css">
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</head><body bgcolor="#ffffff">
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<!-- Generated by Doxygen 1.2.10 -->
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<hr><h1>days_alive.cpp</h1> Calculate the number of days you have been living using durations and dates.
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<p>
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<div class="fragment"><pre>
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<font class="preprocessor">#include "boost/gdtl/gregorian/gregorian.hpp</a>"</font>
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<font class="preprocessor">#include "boost/gdtl/date_parsing.hpp</a>"</font>
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<font class="preprocessor">#include <iostream></font>
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<font class="keywordtype">int</font>
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main()<font class="keyword"> </font>
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<font class="keyword"></font>{
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<font class="keyword">using</font> <font class="keyword">namespace </font>gregorian;
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std::string s;
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std::cout << <font class="stringliteral">"Enter birth day YYYY-MM-DD (eg: 2002-02-01): "</font>;
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std::cin >> s;
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<font class="keywordflow">try</font> {
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date birthday(gdtl::parse_date<date>(s));
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<font class="comment">//date birthday(2002,Jan,1);</font>
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date today = day_clock::local_day();
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date_duration days_alive = today - birthday;
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date_duration one_day(1);
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<font class="keywordflow">if</font> (days_alive == one_day) {
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std::cout << <font class="stringliteral">"Born yesterday, very funny"</font> << std::endl;
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}
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<font class="keywordflow">else</font> <font class="keywordflow">if</font> (days_alive < <a name="a0"></a>date_duration(0)) {
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std::cout << <font class="stringliteral">"Not born yet, hmm: "</font> << days_alive.days()
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<< <font class="stringliteral">" days"</font> <<std::endl;
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}
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<font class="keywordflow">else</font> {
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std::cout << <font class="stringliteral">"Days alive: "</font> << days_alive.days() << std::endl;
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}
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}
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<font class="keywordflow">catch</font>(...) {
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std::cout << <font class="stringliteral">"Bad date entered: "</font> << s << std::endl;
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}
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<font class="keywordflow">return</font> 0;
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};
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</pre></div><hr><address><small>
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Generated Wed Mar 13 13:38:03 2002 by <a href="http://www.doxygen.org">Doxygen</a> for <a href="http://www.crystalclearsoftware.com">CrystalClear Software</a> © 2000-2002</small></address>
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</body>
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</html>
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