New upstream version 8.1.0

thirdparty/source/boost_1_61_0/boost/bind/arg.hpp

@@ -0,0 +1,62 @@
+#ifndef BOOST_BIND_ARG_HPP_INCLUDED
+#define BOOST_BIND_ARG_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+//  bind/arg.hpp
+//
+//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//
+// 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)
+//
+//  See http://www.boost.org/libs/bind/bind.html for documentation.
+//
+
+#include <boost/config.hpp>
+#include <boost/is_placeholder.hpp>
+#include <boost/static_assert.hpp>
+
+namespace boost
+{
+
+template< int I > struct arg
+{
+    BOOST_CONSTEXPR arg()
+    {
+    }
+
+    template< class T > BOOST_CONSTEXPR arg( T const & /* t */ )
+    {
+        BOOST_STATIC_ASSERT( I == is_placeholder<T>::value );
+    }
+};
+
+template< int I > BOOST_CONSTEXPR bool operator==( arg<I> const &, arg<I> const & )
+{
+    return true;
+}
+
+#if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )
+
+template< int I > struct is_placeholder< arg<I> >
+{
+    enum _vt { value = I };
+};
+
+template< int I > struct is_placeholder< arg<I> (*) () >
+{
+    enum _vt { value = I };
+};
+
+#endif
+
+} // namespace boost
+
+#endif // #ifndef BOOST_BIND_ARG_HPP_INCLUDED