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add sprout::optional

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bolero-MURAKAMI 2012-10-22 23:10:11 +09:00
parent 9b9956f810
commit 8cb432dee1
15 changed files with 574 additions and 81 deletions
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49
sprout/optional/comparison.hpp Normal file
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#ifndef SPROUT_OPTIONAL_COMPARISON_HPP
#define SPROUT_OPTIONAL_COMPARISON_HPP
#include <sprout/config.hpp>
#include <sprout/optional/optional.hpp>
#include <sprout/utility/compare_pointees.hpp>
namespace sprout {
//
// operator==
// operator!=
// operator<
// operator>
// operator<=
// operator>=
//
template<typename T>
inline SPROUT_CONSTEXPR bool
operator==(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
return sprout::equal_pointees(lhs, rhs);
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator!=(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
return !(lhs == rhs);
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator<(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
return sprout::less_pointees(lhs, rhs);
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator>(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
return rhs < lhs;
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator<=(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
return !(rhs < lhs);
}
template<typename T>
inline SPROUT_CONSTEXPR bool
operator>=(sprout::optional<T> const& lhs, sprout::optional<T> const& rhs) {
return !(lhs < rhs);
}
} // namespace sprout
#endif // #ifndef SPROUT_OPTIONAL_COMPARISON_HPP