[Boost-commit] svn:boost r4164

From: dannyh_at_[hidden]
Date: 2007-05-21 21:37:33

Author: dannyh
Date: 2007-05-21 21:37:32 EDT (Mon, 21 May 2007)
New Revision: 4164
URL: http://svn.boost.org/trac/boost/changeset/4164

Log:
support for "strm << container_format() % c" syntax.

Text files modified: 
   sandbox/explore/boost/explore/explore.hpp |    53 ++++++++++++++++++++++++++++++++++++++++
   1 files changed, 53 insertions(+), 0 deletions(-)

Modified: sandbox/explore/boost/explore/explore.hpp
==============================================================================
--- sandbox/explore/boost/explore/explore.hpp	(original)
+++ sandbox/explore/boost/explore/explore.hpp	2007-05-21 21:37:32 EDT (Mon, 21 May 2007)
@@ -295,6 +295,59 @@
                 return print( item, std::cout, format, default_container_policy());
         }
 */
+
+    //
+    // The container_formatter type to allow "inline" streaming like the following
+    //
+    // std::cout << container_format( my_formatter) % my_container1 % my_container2 << ...
+    //
+
+    template< typename container, typename formatter>
+    struct container_format_class
+    {
+        container_format_class( const container &c)
+            : container_( c)
+        {
+            // nop
+        };
+
+        const container &get_container() const
+        {
+            return container_;
+        }
+    private:
+        const container &container_;
+
+    };
+
+    template< typename formatter>
+    struct unbound_container_format_class
+    {
+    };
+
+    template< typename formatter>
+        unbound_container_format_class< formatter> container_format( const formatter &)
+    {
+        return unbound_container_format_class<formatter>();
+    }
+
+    unbound_container_format_class< default_format> container_format()
+    {
+        return unbound_container_format_class< default_format>();
+    }
+
+    template< typename container, typename formatter>
+        container_format_class< container, formatter> operator%( unbound_container_format_class<formatter> &u, const container &c)
+    {
+        return container_format_class< container, formatter>( c);
+    }
+
+    template< typename container, typename formatter>
+        std::ostream &operator<<( std::ostream &strm, const container_format_class< container, formatter> &cf)
+    {
+        return print( cf.get_container(), strm);
+    }
+
 }
 
 #endif //__EXPLORE_HPP_INCLUDED__
\ No newline at end of file