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is_placeholder, is_bind_expression added.

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[SVN r34468]
This commit is contained in:
Peter Dimov
2006-07-06 13:47:26 +00:00
parent 24e8602cf1
commit 2e8c4eb8f3
1 changed files with 24 additions and 2 deletions
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26
include/boost/lambda/detail/lambda_functors.hpp
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@@ -207,6 +207,28 @@ public:
} // namespace lambda
} // namespace boost
// is_placeholder
#include <boost/is_placeholder.hpp>
namespace boost
{
template<> struct is_placeholder< lambda::lambda_functor< lambda::placeholder<lambda::FIRST> > >
{
enum _vt { value = 1 };
};
template<> struct is_placeholder< lambda::lambda_functor< lambda::placeholder<lambda::SECOND> > >
{
enum _vt { value = 2 };
};
template<> struct is_placeholder< lambda::lambda_functor< lambda::placeholder<lambda::THIRD> > >
{
enum _vt { value = 3 };
};
} // namespace boost
#endif