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fix optional

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bolero-MURAKAMI 2012-10-26 17:38:48 +09:00
parent c8e2514d36
commit f9d8908f95
5 changed files with 142 additions and 53 deletions
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18
sprout/optional/nullopt.hpp Normal file
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#ifndef SPROUT_OPTIONAL_NULLOPT_HPP
#define SPROUT_OPTIONAL_NULLOPT_HPP
#include <sprout/config.hpp>
#include <sprout/none.hpp>
namespace sprout {
//
// none_t
// none
//
typedef sprout::none_t nullopt_t;
namespace {
SPROUT_STATIC_CONSTEXPR nullopt_t nullopt{};
} // anonymous-namespace
} // namespace sprout
#endif // #ifndef SPROUT_OPTIONAL_NULLOPT_HPP