diff DEPENDENCIES/generic/include/boost/chrono/io/duration_put.hpp @ 16:2665513ce2d3

Add boost headers

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DEPENDENCIES/generic/include/boost/chrono/io/duration_put.hpp	Tue Aug 05 11:11:38 2014 +0100
@@ -0,0 +1,264 @@
+//  (C) Copyright Howard Hinnant
+//  (C) Copyright 2011 Vicente J. Botet Escriba
+//  Use, modification and distribution are subject to 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).
+//
+
+/**
+ * Duration formatting facet for output.
+ */
+#ifndef BOOST_CHRONO_IO_DURATION_PUT_HPP
+#define BOOST_CHRONO_IO_DURATION_PUT_HPP
+
+#include <boost/chrono/config.hpp>
+#include <boost/chrono/io/duration_units.hpp>
+#include <boost/assert.hpp>
+#include <locale>
+
+namespace boost
+{
+  namespace chrono
+  {
+
+    /**
+     * @tparam ChatT a character type
+     * @tparam OutputIterator a model of @c OutputIterator
+     *
+     * The @c duration_put facet provides facilities for formatted output of duration values.
+     * The member function of @c duration_put take a duration and format it into character string representation.
+     *
+     */
+    template <class CharT, class OutputIterator = std::ostreambuf_iterator<CharT> >
+    class duration_put: public std::locale::facet
+    {
+    public:
+      /**
+       * Type of character the facet is instantiated on.
+       */
+      typedef CharT char_type;
+      /**
+       * Type of character string passed to member functions.
+       */
+      typedef std::basic_string<CharT> string_type;
+      /**
+       * Type of iterator used to write in the character buffer.
+       */
+      typedef OutputIterator iter_type;
+
+      /**
+       * Construct a duration_put facet.
+       * @param refs
+       * @Effects Construct a duration_put facet.
+       * If the @c refs argument is @c 0 then destruction of the object is
+       * delegated to the @c locale, or locales, containing it. This allows
+       * the user to ignore lifetime management issues. On the other had,
+       * if @c refs is @c 1 then the object must be explicitly deleted;
+       * the @c locale will not do so. In this case, the object can be
+       * maintained across the lifetime of multiple locales.
+       */
+      explicit duration_put(size_t refs = 0) :
+        std::locale::facet(refs)
+      {
+      }
+
+      /**
+       *
+       * @param s an output stream iterator
+       * @param ios a reference to a ios_base
+       * @param fill the character used as filler
+       * @param d the duration
+       * @param pattern begin of the formatting pattern
+       * @param pat_end end of the formatting pattern
+       *
+       * @Effects Steps through the sequence from @c pattern to @c pat_end,
+       * identifying characters that are part of a pattern sequence. Each character
+       * that is not part of a pattern sequence is written to @c s immediately, and
+       * each pattern sequence, as it is identified, results in a call to
+       * @c put_value or @c put_unit;
+       * thus, pattern elements and other characters are interleaved in the output
+       * in the order in which they appear in the pattern. Pattern sequences are
+       * identified by converting each character @c c to a @c char value as if by
+       * @c ct.narrow(c,0), where @c ct is a reference to @c ctype<charT> obtained from
+       * @c ios.getloc(). The first character of each sequence is equal to @c '%',
+       * followed by a pattern specifier character @c spec, which can be @c 'v' for
+       * the duration value or @c 'u' for the duration unit. .
+       * For each valid pattern sequence identified, calls
+       * <c>put_value(s, ios, fill, d)</c> or <c>put_unit(s, ios, fill, d)</c>.
+       *
+       * @Returns An iterator pointing immediately after the last character produced.
+       */
+      template <typename Rep, typename Period>
+      iter_type put(iter_type s, std::ios_base& ios, char_type fill, duration<Rep, Period> const& d, const CharT* pattern,
+          const CharT* pat_end) const
+      {
+        if (std::has_facet<duration_units<CharT> >(ios.getloc()))
+        {
+          duration_units<CharT> const&facet = std::use_facet<duration_units<CharT> >(
+              ios.getloc());
+          return put(facet, s, ios, fill, d, pattern, pat_end);
+        }
+        else
+        {
+          duration_units_default<CharT> facet;
+          return put(facet, s, ios, fill, d, pattern, pat_end);
+        }
+      }
+
+      template <typename Rep, typename Period>
+      iter_type put(duration_units<CharT> const& units_facet, iter_type s, std::ios_base& ios, char_type fill,
+          duration<Rep, Period> const& d, const CharT* pattern, const CharT* pat_end) const
+      {
+
+        const std::ctype<char_type>& ct = std::use_facet<std::ctype<char_type> >(ios.getloc());
+        for (; pattern != pat_end; ++pattern)
+        {
+          if (ct.narrow(*pattern, 0) == '%')
+          {
+            if (++pattern == pat_end)
+            {
+              *s++ = pattern[-1];
+              break;
+            }
+            char fmt = ct.narrow(*pattern, 0);
+            switch (fmt)
+            {
+            case 'v':
+            {
+              s = put_value(s, ios, fill, d);
+              break;
+            }
+            case 'u':
+            {
+              s = put_unit(units_facet, s, ios, fill, d);
+              break;
+            }
+            default:
+              BOOST_ASSERT(false && "Boost::Chrono internal error.");
+              break;
+            }
+          }
+          else
+            *s++ = *pattern;
+        }
+        return s;
+      }
+
+      /**
+       *
+       * @param s an output stream iterator
+       * @param ios a reference to a ios_base
+       * @param fill the character used as filler
+       * @param d the duration
+       * @Effects imbue in @c ios the @c duration_units_default facet if not already present.
+       * Retrieves Stores the duration pattern from the @c duration_unit facet in let say @c str. Last as if
+       * @code
+       *   return put(s, ios, d, str.data(), str.data() + str.size());
+       * @endcode
+       * @Returns An iterator pointing immediately after the last character produced.
+       */
+      template <typename Rep, typename Period>
+      iter_type put(iter_type s, std::ios_base& ios, char_type fill, duration<Rep, Period> const& d) const
+      {
+        if (std::has_facet<duration_units<CharT> >(ios.getloc()))
+        {
+          duration_units<CharT> const&facet = std::use_facet<duration_units<CharT> >(
+              ios.getloc());
+          std::basic_string<CharT> str = facet.get_pattern();
+          return put(facet, s, ios, fill, d, str.data(), str.data() + str.size());
+        }
+        else
+        {
+          duration_units_default<CharT> facet;
+          std::basic_string<CharT> str = facet.get_pattern();
+          return put(facet, s, ios, fill, d, str.data(), str.data() + str.size());
+        }
+      }
+
+      /**
+       *
+       * @param s an output stream iterator
+       * @param ios a reference to a ios_base
+       * @param fill the character used as filler
+       * @param d the duration
+       * @Effects As if s=std::use_facet<std::num_put<CharT, iter_type> >(ios.getloc()).put(s, ios, fill, static_cast<long int> (d.count())).
+       * @Returns s, iterator pointing immediately after the last character produced.
+       */
+      template <typename Rep, typename Period>
+      iter_type put_value(iter_type s, std::ios_base& ios, char_type fill, duration<Rep, Period> const& d) const
+      {
+        return std::use_facet<std::num_put<CharT, iter_type> >(ios.getloc()).put(s, ios, fill,
+            static_cast<long int> (d.count()));
+      }
+
+      /**
+       *
+       * @param s an output stream iterator
+       * @param ios a reference to a ios_base
+       * @param fill the character used as filler
+       * @param d the duration
+       * @Effects Let facet be the duration_units<CharT> facet associated to ios. If the associated unit is named,
+       * as if
+       * @code
+          string_type str = facet.get_unit(get_duration_style(ios), d);
+          s=std::copy(str.begin(), str.end(), s);
+       * @endcode
+       * Otherwise, format the unit as "[Period::num/Period::den]" followed by the unit associated to [N/D] obtained using facet.get_n_d_unit(get_duration_style(ios), d)
+       * @Returns s, iterator pointing immediately after the last character produced.
+       */
+      template <typename Rep, typename Period>
+      iter_type put_unit(iter_type s, std::ios_base& ios, char_type fill, duration<Rep, Period> const& d) const
+      {
+        if (std::has_facet<duration_units<CharT> >(ios.getloc()))
+        {
+          duration_units<CharT> const&facet = std::use_facet<duration_units<CharT> >(
+              ios.getloc());
+          return put_unit(facet, s, ios, fill, d);
+        }
+        else
+        {
+          duration_units_default<CharT> facet;
+          return put_unit(facet, s, ios, fill, d);
+        }
+      }
+
+      template <typename Rep, typename Period>
+      iter_type put_unit(duration_units<CharT> const& facet, iter_type s, std::ios_base& ios, char_type fill,
+          duration<Rep, Period> const& d) const
+      {
+        if (facet.template is_named_unit<Period>()) {
+          string_type str = facet.get_unit(get_duration_style(ios), d);
+          s=std::copy(str.begin(), str.end(), s);
+        } else {
+          *s++ = CharT('[');
+          std::use_facet<std::num_put<CharT, iter_type> >(ios.getloc()).put(s, ios, fill, Period::num);
+          *s++ = CharT('/');
+          std::use_facet<std::num_put<CharT, iter_type> >(ios.getloc()).put(s, ios, fill, Period::den);
+          *s++ = CharT(']');
+          string_type str = facet.get_n_d_unit(get_duration_style(ios), d);
+          s=std::copy(str.begin(), str.end(), s);
+        }
+        return s;
+      }
+
+      /**
+       * Unique identifier for this type of facet.
+       */
+      static std::locale::id id;
+
+      /**
+       * @Effects Destroy the facet
+       */
+      ~duration_put()
+      {
+      }
+
+    };
+
+    template <class CharT, class OutputIterator>
+    std::locale::id duration_put<CharT, OutputIterator>::id;
+
+  } // chrono
+} // boost
+
+#endif  // header