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add sprout::optional

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This commit is contained in:
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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61
sprout/optional/get.hpp Normal file
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#ifndef SPROUT_OPTIONAL_GET_HPP
#define SPROUT_OPTIONAL_GET_HPP
#include <sprout/config.hpp>
#include <sprout/optional/optional.hpp>
namespace sprout {
//
// get
//
template<typename T>
inline SPROUT_CONSTEXPR typename sprout::optional<T>::reference_const_type
get(sprout::optional<T> const& x) {
return x.get();
}
template<typename T>
inline typename sprout::optional<T>::reference_type
get(sprout::optional<T>& x) {
return x.get();
}
template<typename T>
inline SPROUT_CONSTEXPR typename sprout::optional<T>::pointer_const_type
get(sprout::optional<T> const* x) {
return x->get_ptr();
}
template<typename T>
inline typename sprout::optional<T>::pointer_type
get(sprout::optional<T>* x) {
return x->get_ptr();
}
//
// get_pointer
//
template<typename T>
inline SPROUT_CONSTEXPR typename sprout::optional<T>::pointer_const_type
get_pointer(sprout::optional<T> const& x) {
return x.get_pointer();
}
template<typename T>
inline typename sprout::optional<T>::pointer_type
get_pointer(sprout::optional<T>& x) {
return x.get_pointer();
}
//
// get_optional_value_or
//
template<typename T>
inline SPROUT_CONSTEXPR typename sprout::optional<T>::reference_const_type
get_optional_value_or(sprout::optional<T> const& x, typename sprout::optional<T>::reference_const_type v) {
return x.get_value_or(v);
}
template<typename T>
inline typename sprout::optional<T>::reference_type
get_optional_value_or(sprout::optional<T>& x, typename sprout::optional<T>::reference_type v) {
return x.get_value_or(v);
}
} // namespace sprout
#endif // #ifndef SPROUT_OPTIONAL_GET_HPP