From: jefffaust_at_[hidden]
Date: 2007-05-27 19:25:58
Author: jefffaust
Date: 2007-05-27 19:25:57 EDT (Sun, 27 May 2007)
New Revision: 4323
URL: http://svn.boost.org/trac/boost/changeset/4323
Log:
Add wrapper to support boost.range
Text files modified:
sandbox/explore/boost/explore/stream_container.hpp | 24 ++++++++++++++++++++++++
1 files changed, 24 insertions(+), 0 deletions(-)
Modified: sandbox/explore/boost/explore/stream_container.hpp
==============================================================================
--- sandbox/explore/boost/explore/stream_container.hpp (original)
+++ sandbox/explore/boost/explore/stream_container.hpp 2007-05-27 19:25:57 EDT (Sun, 27 May 2007)
@@ -15,6 +15,7 @@
#include <ostream>
#include <boost/functional/detail/container_fwd.hpp>
#include <boost/array.hpp>
+#include <boost/range/iterator_range.hpp>
// generate string init functions for both char and wchar_t types
#define BOOST_EXPLORE_INIT_STRING(name, str) \
@@ -96,6 +97,15 @@
{
explore::get_stream_state<container_stream_state<Elem, Tr> >(ostr)->assoc_end = end;
}
+
+ // used to work around some problems with overriding for operator<<, in particular where
+ // there already exists such an operator that does not do what we want.
+ template<typename T>
+ struct iterator_range_wrapper
+ {
+ iterator_range_wrapper(const boost::iterator_range<T>& ir) : t(ir) {}
+ const boost::iterator_range<T>& t;
+ };
}
// A simple collection of additional stream state
@@ -178,6 +188,12 @@
// redirect with "normal" streaming.
return stream_container(ostr, first, last, stream_normal_value());
}
+
+ template<typename T>
+ detail::iterator_range_wrapper<T> as_container(const boost::iterator_range<T>& ir)
+ {
+ return detail::iterator_range_wrapper<T>(ir);
+ }
}
namespace std
@@ -259,6 +275,14 @@
}
# endif
+ // stream boost::iterator_range
+ template<typename Elem, typename Tr, typename T>
+ std::basic_ostream<Elem, Tr>& operator<<(std::basic_ostream<Elem, Tr>& ostr,
+ explore::detail::iterator_range_wrapper<T>& r)
+ {
+ return explore::stream_container(ostr, r.t.begin(), r.t.end());
+ }
+
// manipulator
template<typename Elem>
detail::manipfunc<Elem> separator(const Elem* sep)