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fixed tuples::length not having a specialization for const tuple<> and const null_type

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[SVN r51862]
This commit is contained in:
Joel de Guzman
2009-03-20 01:21:42 +00:00
parent e9dc95ae93
commit 451415ebce
1 changed files with 10 additions and 1 deletions
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11
include/boost/tuple/detail/tuple_basic.hpp
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@ -213,7 +213,7 @@ struct element_impl<0, T, true /* IsConst */>
template<int N, class T>
struct element:
struct element:
public detail::element_impl<N, T, ::boost::is_const<T>::value>
{
};
@ -488,11 +488,20 @@ struct length<tuple<> > {
BOOST_STATIC_CONSTANT(int, value = 0);
};
template<>
struct length<tuple<> const> {
BOOST_STATIC_CONSTANT(int, value = 0);
};
template<>
struct length<null_type> {
BOOST_STATIC_CONSTANT(int, value = 0);
};
template<>
struct length<null_type const> {
BOOST_STATIC_CONSTANT(int, value = 0);
};
namespace detail {