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add first, second free-function

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add string::find
This commit is contained in:
bolero-MURAKAMI 2012-10-08 14:14:59 +09:00
parent 5ce2cb023c
commit 35f08fe242
13 changed files with 611 additions and 383 deletions
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93
sprout/utility/pair/tuple.hpp Normal file
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#ifndef SPROUT_UTILITY_PAIR_TUPLE_HPP
#define SPROUT_UTILITY_PAIR_TUPLE_HPP
#include <cstddef>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/utility/pair/pair.hpp>
#include <sprout/utility/move.hpp>
namespace sprout {
namespace tuples {
namespace detail {
template<std::size_t I, typename T>
struct tuple_element_impl;
template<typename T1, typename T2>
struct tuple_element_impl<0, sprout::pair<T1, T2> > {
public:
typedef T1 type;
};
template<typename T1, typename T2>
struct tuple_element_impl<1, sprout::pair<T1, T2> > {
public:
typedef T2 type;
};
template<std::size_t I, typename T>
struct get_impl;
template<typename T1, typename T2>
struct get_impl<0, sprout::pair<T1, T2> > {
public:
SPROUT_CONSTEXPR T1& operator()(sprout::pair<T1, T2>& t) const {
return t.first;
}
SPROUT_CONSTEXPR T1 const& operator()(sprout::pair<T1, T2> const& t) const {
return t.first;
}
};
template<typename T1, typename T2>
struct get_impl<1, sprout::pair<T1, T2> > {
public:
SPROUT_CONSTEXPR T2& operator()(sprout::pair<T1, T2>& t) const {
return t.second;
}
SPROUT_CONSTEXPR T2 const& operator()(sprout::pair<T1, T2> const& t) const {
return t.second;
}
};
} // namespace detail
} // namespace tuples
} // namespace sprout
namespace std {
//
// tuple_size
//
template<typename T1, typename T2>
struct tuple_size<sprout::pair<T1, T2> >
: public std::integral_constant<std::size_t, 2>
{};
//
// tuple_element
//
template<std::size_t I, typename T1, typename T2>
struct tuple_element<I, sprout::pair<T1, T2> >
: public sprout::tuples::detail::tuple_element_impl<I, sprout::pair<T1, T2> >
{};
} // namespace std
namespace sprout {
//
// tuple_get
//
template<std::size_t I, typename T1, typename T2>
inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::pair<T1, T2> >::type&
tuple_get(sprout::pair<T1, T2>& t) SPROUT_NOEXCEPT {
static_assert(I < 2, "tuple_get: index out of range");
return sprout::tuples::detail::get_impl<I, sprout::pair<T1, T2> >()(t);
}
template<std::size_t I, typename T1, typename T2>
inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::pair<T1, T2> >::type const&
tuple_get(sprout::pair<T1, T2> const& t) SPROUT_NOEXCEPT {
static_assert(I < 2, "tuple_get: index out of range");
return sprout::tuples::detail::get_impl<I, sprout::pair<T1, T2> >()(t);
}
template<std::size_t I, typename T1, typename T2>
inline SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<I, sprout::pair<T1, T2> >::type&&
tuple_get(sprout::pair<T1, T2>&& t) SPROUT_NOEXCEPT {
return sprout::move(sprout::tuples::get<I>(t));
}
} // namespace sprout
#endif // #ifndef SPROUT_UTILITY_PAIR_TUPLE_HPP