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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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72
sprout/optional/comparison.hpp
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@ -2,8 +2,9 @@
#define SPROUT_OPTIONAL_COMPARISON_HPP
#include <sprout/config.hpp>
#include <sprout/optional/optional.hpp>
#include <sprout/utility/compare_pointees.hpp>
#include <sprout/optional/optional.hpp>
#include <sprout/optional/nullopt.hpp>
namespace sprout {
//
@ -44,6 +45,75 @@ namespace sprout {
operator>=(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
return !(lhs < rhs);
}
//
// operator==
// operator!=
// operator<
// operator>
// operator<=
// operator>=
//
template<typename T>
inline SPROUT_CONSTEXPR bool
operator==(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
return !lhs;
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator==(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
return !rhs;
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator!=(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
return bool(lhs);
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator!=(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
return bool(rhs);
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator<(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
return false;
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator<(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
return bool(rhs);
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator>(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
return bool(lhs);
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator>(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
return false;
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator<=(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
return !lhs;
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator<=(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
return true;
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator>=(sprout::optional<T> const& lhs, sprout::nullopt_t) SPROUT_NOEXCEPT {
return true;
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator>=(sprout::nullopt_t, sprout::optional<T> const& rhs) SPROUT_NOEXCEPT {
return !rhs;
}
} // namespace sprout
#endif // #ifndef SPROUT_OPTIONAL_COMPARISON_HPP