coroutine: activate new interface V2

[SVN r84428]

example/echo.cpp

@@ -10,6 +10,43 @@
 #include <boost/bind.hpp>
 #include <boost/coroutine/all.hpp>
 
+#ifdef BOOST_COROUTINES_V2
+typedef boost::coroutines::pull_coroutine< void > pull_coro_t;
+typedef boost::coroutines::push_coroutine< void > push_coro_t;
+
+void echo( pull_coro_t & c, int i)
+{
+    std::cout << i;
+    c();
+}
+
+void runit( push_coro_t & ca)
+{
+    std::cout << "started! ";
+    for ( int i = 0; i < 10; ++i)
+    {
+        push_coro_t c( boost::bind( echo, _1, i) );
+        while ( c)
+            c();
+        ca();
+    }
+}
+
+int main( int argc, char * argv[])
+{
+    {
+        pull_coro_t c( runit);
+        while ( c) {
+            std::cout << "-";
+            c();
+        }
+    }
+
+    std::cout << "\nDone" << std::endl;
+
+    return EXIT_SUCCESS;
+}
+#else
 typedef boost::coroutines::coroutine< void() >   coro_t;
 
 void echo( coro_t & ca, int i)
@@ -44,3 +81,4 @@ int main( int argc, char * argv[])
 
     return EXIT_SUCCESS;
 }
+#endif