is_std_weak_ptr.h

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** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
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#ifndef _QX_IS_STD_WEAK_PTR_H_
#define _QX_IS_STD_WEAK_PTR_H_

#ifdef _MSC_VER
#pragma once
#endif

namespace qx {
namespace trait {

template <typename T>
struct is_std_weak_ptr : public std::false_type { ; };

template <typename T>
struct is_std_weak_ptr< std::weak_ptr<T> > : public std::true_type { ; };

template <typename T>
struct is_std_weak_ptr< std::weak_ptr<T> & > : public std::true_type { ; };

template <typename T>
struct is_std_weak_ptr< const std::weak_ptr<T> > : public std::true_type { ; };

template <typename T>
struct is_std_weak_ptr< const std::weak_ptr<T> & > : public std::true_type { ; };

} // namespace trait
} // namespace qx

#endif // _QX_IS_STD_WEAK_PTR_H_