variant and boost tuple adaptor docs

[SVN r36140]

doc/fusion.qbk

@@ -32,6 +32,8 @@
 [def __boost_any__              [@http://boost.org/doc/html/any.html Boost.Any]]
 [def __new_iterator_concepts__  [@http://boost.org/libs/iterator/doc/new-iter-concepts.html New Iterator Concepts]]
 [def __boost_array_library__    [@http://www.boost.org/doc/html/array.html Boost.Array Library]]
+[def __boost_variant_library__    [@http://www.boost.org/doc/html/variant.html Boost.Variant Library]]
+[def __boost_tuple_library__    [@http://www.boost.org/libs/tuple/doc/tuple_users_guide.html Boost.Tuple Library]]
 [def __boost_ref__              [@http://www.boost.org/doc/html/ref.html Boost.Ref]]
 [def __boost_ref_call__         [@http://www.boost.org/doc/html/ref.html `ref`]]
 [def __std_pair_doc__           [@http://www.sgi.com/tech/stl/pair.html `std::pair`]]

doc/sequences.qbk

@@ -1326,6 +1326,58 @@ __boost_array_library__
 
 [endsect]
 
+[section boost::tuple]
+This module provides adapters for `boost::tuple`. Including the module 
+header makes `boost::tuple` a fully conforming __forward_sequence__.
+
+[heading Header]
+
+    #include <boost/fusion/sequence/adapted/boost_tuple.hpp>
+
+[heading Model of]
+
+* __forward_sequence__
+
+[heading Example]
+
+    boost::tuple<int,std::string> example_tuple(101, "hello");
+    std::cout << *boost::fusion::begin(example_tuple) << '\n';
+    std::cout << *boost::fusion::next(boost::fusion::begin(example_tuple)) << '\n';
+
+[heading See also]
+
+__boost_tuple_library__
+
+[endsect]
+
+[section boost::variant]
+This module provides adapters for `boost::variant`. Including the module 
+header makes `boost::variant` a fully conforming __forward_sequence__.
+The variant acts as a sequence of the types that can be contained in the variant.
+Accessing types not currently stored int the variant will lead to the variant
+being populated with a default constructed value of that type.
+
+[heading Header]
+
+    #include <boost/fusion/sequence/adapted/variant.hpp>
+
+[heading Model of]
+
+* __forward_sequence__
+
+[heading Example]
+
+    boost::variant<int,std::string> example_variant = 101;
+    std::cout << example_variant << '\n';
+    *boost::fusion::find<std::string>(example_variant) = "hello";
+    std::cout << example_variant << '\n';
+
+[heading See also]
+
+__boost_variant_library__
+
+[endsect]
+
 [endsect]
 
 [section Intrinsics]