1 files changed, 90 insertions, 0 deletions
diff --git a/src/boost/libs/chrono/example/io_ex5.cpp b/src/boost/libs/chrono/example/io_ex5.cpp
new file mode 100644
index 000000000..4bd5cbb46
--- /dev/null
+++ b/src/boost/libs/chrono/example/io_ex5.cpp
@@ -0,0 +1,90 @@
+//  io_ex1.cpp  ----------------------------------------------------------//
+
+//  Copyright 2010 Howard Hinnant
+//  Copyright 2010 Vicente J. Botet Escriba
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+/*
+This code was adapted by Vicente J. Botet Escriba from Hinnant's html documentation.
+Many thanks to Howard for making his code available under the Boost license.
+
+*/
+
+#include <boost/chrono/chrono_io.hpp>
+#include <ostream>
+#include <iostream>
+
+// format duration as [-]d/hh::mm::ss.cc
+template <class CharT, class Traits, class Rep, class Period>
+std::basic_ostream<CharT, Traits>&
+display(std::basic_ostream<CharT, Traits>& os,
+        boost::chrono::duration<Rep, Period> d)
+{
+    using std::cout;
+    using namespace boost;
+    using namespace boost::chrono;
+
+    typedef duration<long long, ratio<86400> > days;
+    typedef duration<long long, centi> centiseconds;
+
+    // if negative, print negative sign and negate
+    if (d < duration<Rep, Period>(0))
+    {
+        d = -d;
+        os << '-';
+    }
+    // round d to nearest centiseconds, to even on tie
+    centiseconds cs = duration_cast<centiseconds>(d);
+    if (d - cs > milliseconds(5)
+        || (d - cs == milliseconds(5) && cs.count() & 1))
+        ++cs;
+    // separate seconds from centiseconds
+    seconds s = duration_cast<seconds>(cs);
+    cs -= s;
+    // separate minutes from seconds
+    minutes m = duration_cast<minutes>(s);
+    s -= m;
+    // separate hours from minutes
+    hours h = duration_cast<hours>(m);
+    m -= h;
+    // separate days from hours
+    days dy = duration_cast<days>(h);
+    h -= dy;
+    // print d/hh:mm:ss.cc
+    os << dy.count() << '/';
+    if (h < hours(10))
+        os << '0';
+    os << h.count() << ':';
+    if (m < minutes(10))
+        os << '0';
+    os << m.count() << ':';
+    if (s < seconds(10))
+        os << '0';
+    os << s.count() << '.';
+    if (cs < centiseconds(10))
+        os << '0';
+    os << cs.count();
+    return os;
+}
+
+int main()
+{
+    using std::cout;
+    using namespace boost;
+    using namespace boost::chrono;
+
+#ifdef BOOST_CHRONO_HAS_CLOCK_STEADY
+    display(cout, steady_clock::now().time_since_epoch()
+                  + duration<long, mega>(1)) << '\n';
+#endif
+    display(cout, -milliseconds(6)) << '\n';
+    display(cout, duration<long, mega>(1)) << '\n';
+    display(cout, -duration<long, mega>(1)) << '\n';
+}
+
+//~ 12/06:03:22.95
+//~ -0/00:00:00.01
+//~ 11/13:46:40.00
+//~ -11/13:46:40.00