1 // (C) Copyright 2009-2011 Frederic Bron.
3 // Use, modification and distribution are subject to the Boost Software License,
4 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt).
7 // See http://www.boost.org/libs/type_traits for most recent version including documentation.
9 #ifndef BOOST_TT_HAS_MINUS_HPP_INCLUDED
10 #define BOOST_TT_HAS_MINUS_HPP_INCLUDED
12 #define BOOST_TT_TRAIT_NAME has_minus
13 #define BOOST_TT_TRAIT_OP -
14 #define BOOST_TT_FORBIDDEN_IF\
16 /* Lhs==pointer and Rhs==fundamental and Rhs!=integral */\
18 ::boost::is_pointer< Lhs_noref >::value && \
19 ::boost::is_fundamental< Rhs_nocv >::value && \
20 (! ::boost::is_integral< Rhs_noref >::value )\
22 /* Lhs==void* and (Rhs==fundamental or Rhs==pointer) */\
24 ::boost::is_pointer< Lhs_noref >::value && \
25 ::boost::is_void< Lhs_noptr >::value && \
27 ::boost::is_fundamental< Rhs_nocv >::value || \
28 ::boost::is_pointer< Rhs_noref >::value\
31 /* Rhs==void* and (Lhs==fundamental or Lhs==pointer) */\
33 ::boost::is_pointer< Rhs_noref >::value && \
34 ::boost::is_void< Rhs_noptr >::value && \
36 ::boost::is_fundamental< Lhs_nocv >::value || \
37 ::boost::is_pointer< Lhs_noref >::value\
40 /* Lhs=fundamental and Rhs=pointer */\
42 ::boost::is_fundamental< Lhs_nocv >::value && \
43 ::boost::is_pointer< Rhs_noref >::value\
45 /* two different pointers */\
47 ::boost::is_pointer< Lhs_noref >::value && \
48 ::boost::is_pointer< Rhs_noref >::value && \
49 (! ::boost::is_same< Lhs_nocv, Rhs_nocv >::value )\
54 #include <boost/type_traits/detail/has_binary_operator.hpp>
56 #undef BOOST_TT_TRAIT_NAME
57 #undef BOOST_TT_TRAIT_OP
58 #undef BOOST_TT_FORBIDDEN_IF