Update of /cvsroot/boost/boost/boost
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv18738/boost
Modified Files:
bind.hpp
Added Files:
is_placeholder.hpp
Log Message:
is_placeholder, is_bind_expression added.
--- NEW FILE: is_placeholder.hpp ---
#ifndef BOOST_IS_PLACEHOLDER_HPP_INCLUDED
#define BOOST_IS_PLACEHOLDER_HPP_INCLUDED
// MS compatible compilers support #pragma once
#if defined( _MSC_VER ) && ( _MSC_VER >= 1020 )
# pragma once
#endif
// is_placeholder.hpp - TR1 is_placeholder metafunction
//
// Copyright (c) 2006 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0.
//
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
namespace boost
{
template< class T > struct is_placeholder
{
enum _vt { value = 0 };
};
} // namespace boost
#endif // #ifndef BOOST_IS_PLACEHOLDER_HPP_INCLUDED
Index: bind.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/bind.hpp,v
retrieving revision 1.56
retrieving revision 1.57
diff -u -d -r1.56 -r1.57
--- bind.hpp 21 Apr 2006 13:14:58 -0000 1.56
+++ bind.hpp 6 Jul 2006 13:47:26 -0000 1.57
@@ -25,6 +25,7 @@
#include <boost/ref.hpp>
#include <boost/mem_fn.hpp>
#include <boost/type.hpp>
+#include <boost/is_placeholder.hpp>
#include <boost/bind/arg.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/visit_each.hpp>
@@ -933,11 +934,32 @@
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) || (__SUNPRO_CC >=
0x530)
+#if 0
+
template<class T> struct add_value
{
typedef _bi::value<T> type;
};
+#else
+
+template< class T, int I > struct add_value_2
+{
+ typedef boost::arg<I> type;
+};
+
+template< class T > struct add_value_2< T, 0 >
+{
+ typedef _bi::value< T > type;
+};
+
+template<class T> struct add_value
+{
+ typedef typename add_value_2< T, boost::is_placeholder< T >::value >::type
type;
+};
+
+#endif
+
template<class T> struct add_value< value<T> >
{
typedef _bi::value<T> type;
@@ -1194,6 +1216,22 @@
#endif
+// is_bind_expression
+
+template< class T > struct is_bind_expression
+{
+ enum _vt { value = 0 };
+};
+
+#if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )
+
+template< class R, class F, class L > struct is_bind_expression< _bi::bind_t<
R, F, L > >
+{
+ enum _vt { value = 1 };
+};
+
+#endif
+
// bind
#ifndef BOOST_BIND
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