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bolero-MURAKAMI 2011-09-01 02:48:32 +00:00
commit b3bb8121e8
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sprout/detail/if.hpp Normal file
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#ifndef SPROUT_DETAIL_IF_HPP
#define SPROUT_DETAIL_IF_HPP
#include <sprout/config.hpp>
namespace sprout {
namespace detail {
//
// if_c
//
template<bool C, typename T1, typename T2>
struct if_c {
typedef T1 type;
};
template<typename T1, typename T2>
struct if_c<false, T1, T2> {
typedef T2 type;
};
//
// if_
//
template<typename Cond, typename T1, typename T2>
struct if_
: public sprout::detail::if_c<Cond::value, T1, T2>
{};
} // namespace detail
} // namespace sprout
#endif // #ifndef SPROUT_DETAIL_IF_HPP