Initial release.

[SVN r20621]

include/boost/mpl/index_if.hpp

@@ -0,0 +1,121 @@
+//-----------------------------------------------------------------------------
+// boost mpl/index_if.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// Permission to use, copy, modify, distribute and sell this software
+// and its documentation for any purpose is hereby granted without fee, 
+// provided that the above copyright notice appears in all copies and 
+// that both the copyright notice and this permission notice appear in 
+// supporting documentation. No representations are made about the 
+// suitability of this software for any purpose. It is provided "as is" 
+// without express or implied warranty.
+
+#ifndef BOOST_MPL_INDEX_IF_HPP_INCLUDED
+#define BOOST_MPL_INDEX_IF_HPP_INCLUDED
+
+#include "boost/mpl/aux_/config/workaround.hpp"
+#include "boost/mpl/aux_/iter_fold_if_impl.hpp"
+#include "boost/mpl/aux_/iter_apply.hpp"
+#include "boost/mpl/always.hpp"
+#include "boost/mpl/apply.hpp"
+#include "boost/mpl/begin_end.hpp"
+#include "boost/mpl/bool.hpp"
+#include "boost/mpl/if.hpp"
+#include "boost/mpl/int.hpp"
+#include "boost/mpl/lambda.hpp"
+#include "boost/mpl/next.hpp"
+#include "boost/mpl/not.hpp"
+#include "boost/mpl/or.hpp"
+#include "boost/mpl/aux_/void_spec.hpp"
+#include "boost/mpl/aux_/lambda_support.hpp"
+#include "boost/type_traits/is_same.hpp"
+
+namespace boost {
+namespace mpl {
+
+namespace aux {
+
+// slight modification of Aleksey Gurtovoy's find_if_pred
+//   (could replace find_if_pred)
+template< typename Predicate, typename LastIterator >
+struct index_if_pred
+{
+    template< typename State, typename Iterator >
+    struct apply
+    {
+        typedef not_< or_<
+              is_same<Iterator,LastIterator>
+            , aux::iter_apply1<Predicate,Iterator>
+            > > type;
+    };
+};
+
+struct index_if_op
+{
+    template < typename Index, typename Iterator >
+    struct apply
+        : next< Index >
+    {
+    };
+};
+
+} // namespace aux
+
+BOOST_MPL_AUX_AGLORITHM_NAMESPACE_BEGIN
+
+template<
+      typename BOOST_MPL_AUX_VOID_SPEC_PARAM(Sequence)
+    , typename BOOST_MPL_AUX_VOID_SPEC_PARAM(Predicate)
+    >
+struct index_if
+{
+ private:
+    typedef typename begin<Sequence>::type first_;
+    typedef typename end<Sequence>::type last_;
+    typedef typename lambda<Predicate>::type pred_;
+
+// cwpro8 doesn't like 'cut-off' type here (use typedef instead)
+#if !BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
+    struct result_ :
+#else
+    typedef
+#endif
+        aux::iter_fold_if_impl<
+          first_
+        , int_<0>
+        , aux::index_if_op
+        , aux::index_if_pred<pred_,last_>
+        , void
+        , always<false_>
+        >
+#if !BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
+    { };
+#else
+    result_;
+#endif
+
+    typedef typename result_::state result_index_;
+    typedef typename result_::iterator result_iterator_;
+
+ public:
+    typedef typename if_<
+          is_same< result_iterator_,last_ >
+        , int_<-1>
+        , result_index_
+        >::type type;
+
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(2,index_if,(Sequence,Predicate))
+};
+
+BOOST_MPL_AUX_AGLORITHM_NAMESPACE_END
+
+BOOST_MPL_AUX_ALGORITHM_VOID_SPEC(2, index_if)
+
+} // namespace mpl
+} // namespace boost
+
+#endif // BOOST_MPL_INDEX_IF_HPP_INCLUDED

include/boost/mpl/index_of.hpp

@@ -0,0 +1,47 @@
+//-----------------------------------------------------------------------------
+// boost mpl/index_of.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman, Aleksey Gurtovoy
+//
+// Permission to use, copy, modify, distribute and sell this software
+// and its documentation for any purpose is hereby granted without fee, 
+// provided that the above copyright notice appears in all copies and 
+// that both the copyright notice and this permission notice appear in 
+// supporting documentation. No representations are made about the 
+// suitability of this software for any purpose. It is provided "as is" 
+// without express or implied warranty.
+
+#ifndef BOOST_MPL_INDEX_OF_HPP_INCLUDED
+#define BOOST_MPL_INDEX_OF_HPP_INCLUDED
+
+#include "boost/mpl/index_if.hpp"
+#include "boost/mpl/same_as.hpp"
+#include "boost/mpl/aux_/void_spec.hpp"
+#include "boost/mpl/aux_/lambda_support.hpp"
+
+namespace boost {
+namespace mpl {
+
+BOOST_MPL_AUX_AGLORITHM_NAMESPACE_BEGIN
+
+template<
+      typename BOOST_MPL_AUX_VOID_SPEC_PARAM(Sequence)
+    , typename BOOST_MPL_AUX_VOID_SPEC_PARAM(T)
+    >
+struct index_of
+    : index_if< Sequence,same_as<T> >
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(2,index_of,(Sequence,T))
+};
+
+BOOST_MPL_AUX_AGLORITHM_NAMESPACE_END
+
+BOOST_MPL_AUX_ALGORITHM_VOID_SPEC(2, index_of)
+
+} // namespace mpl
+} // namespace boost
+
+#endif // BOOST_MPL_INDEX_OF_HPP_INCLUDED