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fix recursion depth: all algorithms

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This commit is contained in:
bolero-MURAKAMI 2013-01-12 03:41:13 +09:00
parent cb584edb3f
commit 84508d6a6c
18 changed files with 781 additions and 76 deletions
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36
libs/algorithm/test/all_of_equal.cpp
View file

@ -28,6 +28,42 @@ namespace testspr {
); );
TESTSPR_BOTH_ASSERT(result); TESTSPR_BOTH_ASSERT(result);
} }
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::all_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::end(arr1)),
1
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::all_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::begin(arr1) + 5),
1
);
TESTSPR_BOTH_ASSERT(result);
}
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::all_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1)),
1
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::all_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5),
1
);
TESTSPR_BOTH_ASSERT(result);
}
#endif
} }
} }
} // namespace testspr } // namespace testspr

68
libs/algorithm/test/any_of_equal.cpp
View file

@ -44,6 +44,74 @@ namespace testspr {
); );
TESTSPR_BOTH_ASSERT(!result); TESTSPR_BOTH_ASSERT(!result);
} }
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::any_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::end(arr1)),
10
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::any_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::end(arr1)),
11
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::any_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::begin(arr1) + 5),
10
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::any_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::begin(arr1) + 5),
11
);
TESTSPR_BOTH_ASSERT(!result);
}
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::any_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1)),
10
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::any_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1)),
11
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::any_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5),
10
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::any_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5),
11
);
TESTSPR_BOTH_ASSERT(!result);
}
#endif
} }
} }
} // namespace testspr } // namespace testspr

34
libs/algorithm/test/is_decreasing.cpp
View file

@ -26,6 +26,40 @@ namespace testspr {
); );
TESTSPR_BOTH_ASSERT(result); TESTSPR_BOTH_ASSERT(result);
} }
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_decreasing(
testspr::reduct_forward(sprout::begin(arr1)),
testspr::reduct_forward(sprout::end(arr1))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_decreasing(
testspr::reduct_forward(sprout::begin(arr1)),
testspr::reduct_forward(sprout::begin(arr1) + 5)
);
TESTSPR_BOTH_ASSERT(result);
}
#endif
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_decreasing(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_decreasing(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5)
);
TESTSPR_BOTH_ASSERT(result);
}
#endif
} }
} }
} // namespace testspr } // namespace testspr

34
libs/algorithm/test/is_increasing.cpp
View file

@ -26,6 +26,40 @@ namespace testspr {
); );
TESTSPR_BOTH_ASSERT(result); TESTSPR_BOTH_ASSERT(result);
} }
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_increasing(
testspr::reduct_forward(sprout::begin(arr1)),
testspr::reduct_forward(sprout::end(arr1))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_increasing(
testspr::reduct_forward(sprout::begin(arr1)),
testspr::reduct_forward(sprout::begin(arr1) + 5)
);
TESTSPR_BOTH_ASSERT(result);
}
#endif
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_increasing(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_increasing(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5)
);
TESTSPR_BOTH_ASSERT(result);
}
#endif
} }
} }
} // namespace testspr } // namespace testspr

62
libs/algorithm/test/is_strictly_decreasing.cpp
View file

@ -41,6 +41,68 @@ namespace testspr {
); );
TESTSPR_BOTH_ASSERT(!result); TESTSPR_BOTH_ASSERT(!result);
} }
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_decreasing(
testspr::reduct_forward(sprout::begin(arr1)),
testspr::reduct_forward(sprout::end(arr1))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_decreasing(
testspr::reduct_forward(sprout::begin(arr2)),
testspr::reduct_forward(sprout::end(arr2))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_decreasing(
testspr::reduct_forward(sprout::begin(arr1)),
testspr::reduct_forward(sprout::begin(arr1) + 5)
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_decreasing(
testspr::reduct_forward(sprout::begin(arr2)),
testspr::reduct_forward(sprout::begin(arr2) + 5)
);
TESTSPR_BOTH_ASSERT(!result);
}
#endif
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_decreasing(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_decreasing(
testspr::reduct_random_access(sprout::begin(arr2)),
testspr::reduct_random_access(sprout::end(arr2))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_decreasing(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5)
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_decreasing(
testspr::reduct_random_access(sprout::begin(arr2)),
testspr::reduct_random_access(sprout::begin(arr2) + 5)
);
TESTSPR_BOTH_ASSERT(!result);
}
#endif
} }
} }
} // namespace testspr } // namespace testspr

62
libs/algorithm/test/is_strictly_increasing.cpp
View file

@ -41,6 +41,68 @@ namespace testspr {
); );
TESTSPR_BOTH_ASSERT(!result); TESTSPR_BOTH_ASSERT(!result);
} }
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_increasing(
testspr::reduct_forward(sprout::begin(arr1)),
testspr::reduct_forward(sprout::end(arr1))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_increasing(
testspr::reduct_forward(sprout::begin(arr2)),
testspr::reduct_forward(sprout::end(arr2))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_increasing(
testspr::reduct_forward(sprout::begin(arr1)),
testspr::reduct_forward(sprout::begin(arr1) + 5)
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_increasing(
testspr::reduct_forward(sprout::begin(arr2)),
testspr::reduct_forward(sprout::begin(arr2) + 5)
);
TESTSPR_BOTH_ASSERT(!result);
}
#endif
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_increasing(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_increasing(
testspr::reduct_random_access(sprout::begin(arr2)),
testspr::reduct_random_access(sprout::end(arr2))
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_increasing(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5)
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::is_strictly_increasing(
testspr::reduct_random_access(sprout::begin(arr2)),
testspr::reduct_random_access(sprout::begin(arr2) + 5)
);
TESTSPR_BOTH_ASSERT(!result);
}
#endif
} }
} }
} // namespace testspr } // namespace testspr

68
libs/algorithm/test/none_of_equal.cpp
View file

@ -44,6 +44,74 @@ namespace testspr {
); );
TESTSPR_BOTH_ASSERT(result); TESTSPR_BOTH_ASSERT(result);
} }
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::none_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::end(arr1)),
10
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::none_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::end(arr1)),
11
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::none_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::begin(arr1) + 5),
10
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::none_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::begin(arr1) + 5),
11
);
TESTSPR_BOTH_ASSERT(result);
}
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::none_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1)),
10
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::none_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1)),
11
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::none_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5),
10
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::none_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5),
11
);
TESTSPR_BOTH_ASSERT(result);
}
#endif
} }
} }
} // namespace testspr } // namespace testspr

68
libs/algorithm/test/one_of_equal.cpp
View file

@ -44,6 +44,74 @@ namespace testspr {
); );
TESTSPR_BOTH_ASSERT(!result); TESTSPR_BOTH_ASSERT(!result);
} }
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::one_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::end(arr1)),
5
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::one_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::end(arr1)),
10
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::one_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::begin(arr1) + 5),
5
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::one_of_equal(
testspr::reduct_input(sprout::begin(arr1)),
testspr::reduct_input(sprout::begin(arr1) + 5),
10
);
TESTSPR_BOTH_ASSERT(!result);
}
#if defined(__clang__)
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::one_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1)),
5
);
TESTSPR_BOTH_ASSERT(!result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::one_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::end(arr1)),
10
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::one_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5),
5
);
TESTSPR_BOTH_ASSERT(result);
}
{
SPROUT_STATIC_CONSTEXPR auto result = sprout::one_of_equal(
testspr::reduct_random_access(sprout::begin(arr1)),
testspr::reduct_random_access(sprout::begin(arr1) + 5),
10
);
TESTSPR_BOTH_ASSERT(!result);
}
#endif
} }
} }
} // namespace testspr } // namespace testspr

52
sprout/algorithm/all_of_equal.hpp
View file

@ -2,8 +2,11 @@
#define SPROUT_ALGORITHM_ALL_OF_EQUAL_HPP #define SPROUT_ALGORITHM_ALL_OF_EQUAL_HPP
#include <iterator> #include <iterator>
#include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/iterator/operation.hpp> #include <sprout/iterator/operation.hpp>
#include <sprout/iterator/type_traits/is_iterator.hpp>
#include <sprout/utility/pair.hpp>
namespace sprout { namespace sprout {
namespace detail { namespace detail {
@ -26,7 +29,10 @@ namespace sprout {
; ;
} }
template<typename RandomAccessIterator, typename T> template<typename RandomAccessIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_constant_distance_iterator<RandomAccessIterator>::value,
bool
>::type
all_of_equal( all_of_equal(
RandomAccessIterator first, RandomAccessIterator last, T const& value, RandomAccessIterator first, RandomAccessIterator last, T const& value,
std::random_access_iterator_tag* std::random_access_iterator_tag*
@ -38,10 +44,40 @@ namespace sprout {
} }
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR sprout::pair<InputIterator, bool>
all_of_equal_impl(InputIterator first, InputIterator last, T const& value) { all_of_equal_impl_1(
return first == last ? true sprout::pair<InputIterator, bool> const& current,
: *first == value && sprout::detail::all_of_equal_impl(sprout::next(first), last, value) InputIterator last, T const& value, typename std::iterator_traits<InputIterator>::difference_type n
)
{
typedef sprout::pair<InputIterator, bool> type;
return !current.second || current.first == last ? current
: n == 1 ? *current.first == value ? type(sprout::next(current.first), true) : type(current.first, false)
: sprout::detail::all_of_equal_impl_1(
sprout::detail::all_of_equal_impl_1(
current,
last, value, n / 2
),
last, value, n - n / 2
)
;
}
template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR sprout::pair<InputIterator, bool>
all_of_equal_impl(
sprout::pair<InputIterator, bool> const& current,
InputIterator last, T const& value, typename std::iterator_traits<InputIterator>::difference_type n
)
{
typedef sprout::pair<InputIterator, bool> type;
return !current.second || current.first == last ? current
: sprout::detail::all_of_equal_impl(
sprout::detail::all_of_equal_impl_1(
current,
last, value, n
),
last, value, n * 2
)
; ;
} }
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
@ -51,7 +87,8 @@ namespace sprout {
void* void*
) )
{ {
return sprout::detail::all_of_equal_impl(first, last, value); typedef sprout::pair<InputIterator, bool> type;
return sprout::detail::all_of_equal_impl(type(first, true), last, value, 1).second;
} }
} // namespace detail } // namespace detail
@ -59,8 +96,7 @@ namespace sprout {
// all_of_equal // all_of_equal
// //
// recursion depth: // recursion depth:
// [first, last) is RandomAccessIterator -> O(log N) // O(log N)
// otherwise -> O(N)
// //
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool

52
sprout/algorithm/any_of_equal.hpp
View file

@ -2,8 +2,11 @@
#define SPROUT_ALGORITHM_ANY_OF_EQUAL_HPP #define SPROUT_ALGORITHM_ANY_OF_EQUAL_HPP
#include <iterator> #include <iterator>
#include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/iterator/operation.hpp> #include <sprout/iterator/operation.hpp>
#include <sprout/iterator/type_traits/is_iterator.hpp>
#include <sprout/utility/pair.hpp>
namespace sprout { namespace sprout {
namespace detail { namespace detail {
@ -26,7 +29,10 @@ namespace sprout {
; ;
} }
template<typename RandomAccessIterator, typename T> template<typename RandomAccessIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_constant_distance_iterator<RandomAccessIterator>::value,
bool
>::type
any_of_equal( any_of_equal(
RandomAccessIterator first, RandomAccessIterator last, T const& value, RandomAccessIterator first, RandomAccessIterator last, T const& value,
std::random_access_iterator_tag* std::random_access_iterator_tag*
@ -38,10 +44,40 @@ namespace sprout {
} }
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR sprout::pair<InputIterator, bool>
any_of_equal_impl(InputIterator first, InputIterator last, T const& value) { any_of_equal_impl_1(
return first == last ? false sprout::pair<InputIterator, bool> const& current,
: *first == value || sprout::detail::any_of_equal_impl(sprout::next(first), last, value) InputIterator last, T const& value, typename std::iterator_traits<InputIterator>::difference_type n
)
{
typedef sprout::pair<InputIterator, bool> type;
return current.second || current.first == last ? current
: n == 1 ? *current.first == value ? type(current.first, true) : type(sprout::next(current.first), false)
: sprout::detail::any_of_equal_impl_1(
sprout::detail::any_of_equal_impl_1(
current,
last, value, n / 2
),
last, value, n - n / 2
)
;
}
template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR sprout::pair<InputIterator, bool>
any_of_equal_impl(
sprout::pair<InputIterator, bool> const& current,
InputIterator last, T const& value, typename std::iterator_traits<InputIterator>::difference_type n
)
{
typedef sprout::pair<InputIterator, bool> type;
return current.second || current.first == last ? current
: sprout::detail::any_of_equal_impl(
sprout::detail::any_of_equal_impl_1(
current,
last, value, n
),
last, value, n * 2
)
; ;
} }
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
@ -51,7 +87,8 @@ namespace sprout {
void* void*
) )
{ {
return sprout::detail::any_of_equal_impl(first, last, value); typedef sprout::pair<InputIterator, bool> type;
return sprout::detail::any_of_equal_impl(type(first, false), last, value, 1).second;
} }
} // namespace detail } // namespace detail
@ -59,8 +96,7 @@ namespace sprout {
// any_of_equal // any_of_equal
// //
// recursion depth: // recursion depth:
// [first, last) is RandomAccessIterator -> O(log N) // O(log N)
// otherwise -> O(N)
// //
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool

3
sprout/algorithm/is_decreasing.hpp
View file

@ -11,8 +11,7 @@ namespace sprout {
// is_decreasing // is_decreasing
// //
// recursion depth: // recursion depth:
// [first, last) is RandomAccessIterator -> O(log N) // O(log N)
// otherwise -> O(N)
// //
template<typename ForwardIterator> template<typename ForwardIterator>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool

3
sprout/algorithm/is_increasing.hpp
View file

@ -11,8 +11,7 @@ namespace sprout {
// is_increasing // is_increasing
// //
// recursion depth: // recursion depth:
// [first, last) is RandomAccessIterator -> O(log N) // O(log N)
// otherwise -> O(N)
// //
template<typename ForwardIterator> template<typename ForwardIterator>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool

3
sprout/algorithm/is_strictly_decreasing.hpp
View file

@ -11,8 +11,7 @@ namespace sprout {
// is_strictly_decreasing // is_strictly_decreasing
// //
// recursion depth: // recursion depth:
// [first, last) is RandomAccessIterator -> O(log N) // O(log N)
// otherwise -> O(N)
// //
template<typename ForwardIterator> template<typename ForwardIterator>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool

3
sprout/algorithm/is_strictly_increasing.hpp
View file

@ -11,8 +11,7 @@ namespace sprout {
// is_strictly_increasing // is_strictly_increasing
// //
// recursion depth: // recursion depth:
// [first, last) is RandomAccessIterator -> O(log N) // O(log N)
// otherwise -> O(N)
// //
template<typename ForwardIterator> template<typename ForwardIterator>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool

6
sprout/algorithm/lexicographical_compare.hpp
View file

@ -13,11 +13,11 @@
namespace sprout { namespace sprout {
namespace detail { namespace detail {
template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename Compare> template<typename InputIterator1, typename InputIterator2, typename Compare>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool
lexicographical_compare_impl_check( lexicographical_compare_impl_check(
RandomAccessIterator1 last1, RandomAccessIterator2 last2, Compare comp, InputIterator1 last1, InputIterator2 last2, Compare comp,
sprout::pair<RandomAccessIterator1, RandomAccessIterator2> const& found sprout::pair<InputIterator1, InputIterator2> const& found
) )
{ {
return found.second == last2 ? false return found.second == last2 ? false

52
sprout/algorithm/none_of_equal.hpp
View file

@ -2,8 +2,11 @@
#define SPROUT_ALGORITHM_NONE_OF_EQUAL_HPP #define SPROUT_ALGORITHM_NONE_OF_EQUAL_HPP
#include <iterator> #include <iterator>
#include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/iterator/operation.hpp> #include <sprout/iterator/operation.hpp>
#include <sprout/iterator/type_traits/is_iterator.hpp>
#include <sprout/utility/pair.hpp>
namespace sprout { namespace sprout {
namespace detail { namespace detail {
@ -26,7 +29,10 @@ namespace sprout {
; ;
} }
template<typename RandomAccessIterator, typename T> template<typename RandomAccessIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_constant_distance_iterator<RandomAccessIterator>::value,
bool
>::type
none_of_equal( none_of_equal(
RandomAccessIterator first, RandomAccessIterator last, T const& value, RandomAccessIterator first, RandomAccessIterator last, T const& value,
std::random_access_iterator_tag* std::random_access_iterator_tag*
@ -38,10 +44,40 @@ namespace sprout {
} }
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR sprout::pair<InputIterator, bool>
none_of_equal_impl(InputIterator first, InputIterator last, T const& value) { none_of_equal_impl_1(
return first == last ? true sprout::pair<InputIterator, bool> const& current,
: !(*first == value) && sprout::detail::none_of_equal_impl(sprout::next(first), last, value) InputIterator last, T const& value, typename std::iterator_traits<InputIterator>::difference_type n
)
{
typedef sprout::pair<InputIterator, bool> type;
return !current.second || current.first == last ? current
: n == 1 ? !(*current.first == value) ? type(sprout::next(current.first), true) : type(current.first, false)
: sprout::detail::none_of_equal_impl_1(
sprout::detail::none_of_equal_impl_1(
current,
last, value, n / 2
),
last, value, n - n / 2
)
;
}
template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR sprout::pair<InputIterator, bool>
none_of_equal_impl(
sprout::pair<InputIterator, bool> const& current,
InputIterator last, T const& value, typename std::iterator_traits<InputIterator>::difference_type n
)
{
typedef sprout::pair<InputIterator, bool> type;
return !current.second || current.first == last ? current
: sprout::detail::none_of_equal_impl(
sprout::detail::none_of_equal_impl_1(
current,
last, value, n
),
last, value, n * 2
)
; ;
} }
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
@ -51,7 +87,8 @@ namespace sprout {
void* void*
) )
{ {
return sprout::detail::none_of_equal_impl(first, last, value); typedef sprout::pair<InputIterator, bool> type;
return sprout::detail::none_of_equal_impl(type(first, true), last, value, 1).second;
} }
} // namespace detail } // namespace detail
@ -59,8 +96,7 @@ namespace sprout {
// none_of_equal // none_of_equal
// //
// recursion depth: // recursion depth:
// [first, last) is RandomAccessIterator -> O(log N) // O(log N)
// otherwise -> O(N)
// //
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool

120
sprout/algorithm/one_of_equal.hpp
View file

@ -1,19 +1,118 @@
#ifndef SPROUT_ALGORITHM_ONE_OF_EQUAL_HPP #ifndef SPROUT_ALGORITHM_ONE_OF_EQUAL_HPP
#define SPROUT_ALGORITHM_ONE_OF_EQUAL_HPP #define SPROUT_ALGORITHM_ONE_OF_EQUAL_HPP
#include <iterator>
#include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/iterator/operation.hpp> #include <sprout/iterator/operation.hpp>
#include <sprout/algorithm/none_of_equal.hpp> #include <sprout/iterator/type_traits/is_iterator.hpp>
#include <sprout/algorithm/find.hpp> #include <sprout/utility/pair.hpp>
namespace sprout { namespace sprout {
namespace detail { namespace detail {
template<typename RandomAccessIterator, typename T>
inline SPROUT_CONSTEXPR bool
one_of_equal_impl_ra_1(
RandomAccessIterator first, RandomAccessIterator last, T const& value,
typename std::iterator_traits<RandomAccessIterator>::difference_type pivot
)
{
return pivot == 0 ? !(*first == value)
: sprout::detail::one_of_equal_impl_ra_1(
first, sprout::next(first, pivot), value,
pivot / 2
)
&& sprout::detail::one_of_equal_impl_ra_1(
sprout::next(first, pivot), last, value,
(sprout::distance(first, last) - pivot) / 2
)
;
}
template<typename RandomAccessIterator, typename T>
inline SPROUT_CONSTEXPR bool
one_of_equal_impl_ra(
RandomAccessIterator first, RandomAccessIterator last, T const& value,
typename std::iterator_traits<RandomAccessIterator>::difference_type pivot
)
{
return pivot == 0 ? *first == value
: sprout::detail::one_of_equal_impl_ra(
first, sprout::next(first, pivot), value,
pivot / 2
)
? sprout::detail::one_of_equal_impl_ra_1(
sprout::next(first, pivot), last, value,
(sprout::distance(first, last) - pivot) / 2
)
: sprout::detail::one_of_equal_impl_ra(
sprout::next(first, pivot), last, value,
(sprout::distance(first, last) - pivot) / 2
)
;
}
template<typename RandomAccessIterator, typename T>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_constant_distance_iterator<RandomAccessIterator>::value,
bool
>::type
one_of_equal(
RandomAccessIterator first, RandomAccessIterator last, T const& value,
std::random_access_iterator_tag*
)
{
return first == last ? true
: sprout::detail::one_of_equal_impl_ra(first, last, value, sprout::distance(first, last) / 2)
;
}
template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR sprout::pair<InputIterator, typename std::iterator_traits<InputIterator>::difference_type>
one_of_equal_impl_1(
sprout::pair<InputIterator, typename std::iterator_traits<InputIterator>::difference_type> const& current,
InputIterator last, T const& value, typename std::iterator_traits<InputIterator>::difference_type n
)
{
typedef sprout::pair<InputIterator, typename std::iterator_traits<InputIterator>::difference_type> type;
return current.second > 1 || current.first == last ? current
: n == 1 ? current.second == 0
? type(sprout::next(current.first), *current.first == value ? 1 : 0)
: !(*current.first == value) ? type(sprout::next(current.first), 1) : type(current.first, 2)
: sprout::detail::one_of_equal_impl_1(
sprout::detail::one_of_equal_impl_1(
current,
last, value, n / 2
),
last, value, n - n / 2
)
;
}
template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR sprout::pair<InputIterator, typename std::iterator_traits<InputIterator>::difference_type>
one_of_equal_impl(
sprout::pair<InputIterator, typename std::iterator_traits<InputIterator>::difference_type> const& current,
InputIterator last, T const& value, typename std::iterator_traits<InputIterator>::difference_type n
)
{
typedef sprout::pair<InputIterator, typename std::iterator_traits<InputIterator>::difference_type> type;
return current.second > 1 || current.first == last ? current
: sprout::detail::one_of_equal_impl(
sprout::detail::one_of_equal_impl_1(
current,
last, value, n
),
last, value, n * 2
)
;
}
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool
one_of_equal_impl(InputIterator found, InputIterator last, T const& value) { one_of_equal(
return found != last InputIterator first, InputIterator last, T const& value,
&& sprout::none_of_equal(sprout::next(found), last, value) void*
; )
{
typedef sprout::pair<InputIterator, typename std::iterator_traits<InputIterator>::difference_type> type;
return sprout::detail::one_of_equal_impl(type(first, 0), last, value, 1).second == 1;
} }
} // namespace detail } // namespace detail
@ -21,16 +120,13 @@ namespace sprout {
// one_of_equal // one_of_equal
// //
// recursion depth: // recursion depth:
// [first, last) is RandomAccessIterator -> O(log N) // O(log N)
// otherwise -> O(N)
// //
template<typename InputIterator, typename T> template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR bool inline SPROUT_CONSTEXPR bool
one_of_equal(InputIterator first, InputIterator last, T const& value) { one_of_equal(InputIterator first, InputIterator last, T const& value) {
return sprout::detail::one_of_equal_impl( typedef typename std::iterator_traits<InputIterator>::iterator_category* category;
sprout::find(first, last, value), last, return sprout::detail::one_of_equal(first, last, value, category());
value
);
} }
} // namespace sprout } // namespace sprout

131
sprout/algorithm/tristate_lexicographical_compare.hpp
View file

@ -1,8 +1,11 @@
#ifndef SPROUT_ALGORITHM_TRISTATE_LEXICOGRAPHICAL_COMPARE_HPP #ifndef SPROUT_ALGORITHM_TRISTATE_LEXICOGRAPHICAL_COMPARE_HPP
#define SPROUT_ALGORITHM_TRISTATE_LEXICOGRAPHICAL_COMPARE_HPP #define SPROUT_ALGORITHM_TRISTATE_LEXICOGRAPHICAL_COMPARE_HPP
#include <iterator>
#include <type_traits>
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/iterator/operation.hpp> #include <sprout/iterator/operation.hpp>
#include <sprout/iterator/type_traits/is_iterator.hpp>
#include <sprout/iterator/type_traits/common.hpp> #include <sprout/iterator/type_traits/common.hpp>
#include <sprout/utility/pair.hpp> #include <sprout/utility/pair.hpp>
#include <sprout/algorithm/min.hpp> #include <sprout/algorithm/min.hpp>
@ -10,11 +13,11 @@
namespace sprout { namespace sprout {
namespace detail { namespace detail {
template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename Compare> template<typename InputIterator1, typename InputIterator2, typename Compare>
inline SPROUT_CONSTEXPR int inline SPROUT_CONSTEXPR int
tristate_lexicographical_compare_impl_ra_2( tristate_lexicographical_compare_impl_check(
RandomAccessIterator1 last1, RandomAccessIterator2 last2, Compare comp, InputIterator1 last1, InputIterator2 last2, Compare comp,
sprout::pair<RandomAccessIterator1, RandomAccessIterator2> const& found sprout::pair<InputIterator1, InputIterator2> const& found
) )
{ {
return found.second == last2 ? (found.first == last1 ? 0 : 1) return found.second == last2 ? (found.first == last1 ? 0 : 1)
@ -24,6 +27,7 @@ namespace sprout {
: 0 : 0
; ;
} }
template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename Compare> template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename Compare>
inline SPROUT_CONSTEXPR sprout::pair<RandomAccessIterator1, RandomAccessIterator2> inline SPROUT_CONSTEXPR sprout::pair<RandomAccessIterator1, RandomAccessIterator2>
tristate_lexicographical_compare_impl_ra_1( tristate_lexicographical_compare_impl_ra_1(
@ -53,7 +57,7 @@ namespace sprout {
) )
{ {
typedef sprout::pair<RandomAccessIterator1, RandomAccessIterator2> found_type; typedef sprout::pair<RandomAccessIterator1, RandomAccessIterator2> found_type;
return sprout::detail::tristate_lexicographical_compare_impl_ra_2( return sprout::detail::tristate_lexicographical_compare_impl_check(
last1, last2, comp, last1, last2, comp,
sprout::detail::tristate_lexicographical_compare_impl_ra_1( sprout::detail::tristate_lexicographical_compare_impl_ra_1(
first1, sprout::next(first1, size), first2, sprout::next(first2, size), comp, first1, sprout::next(first1, size), first2, sprout::next(first2, size), comp,
@ -62,7 +66,10 @@ namespace sprout {
); );
} }
template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename Compare> template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename Compare>
inline SPROUT_CONSTEXPR int inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_constant_distance_iterator<RandomAccessIterator1>::value,
int
>::type
tristate_lexicographical_compare( tristate_lexicographical_compare(
RandomAccessIterator1 first1, RandomAccessIterator1 last1, RandomAccessIterator2 first2, RandomAccessIterator2 last2, Compare comp, RandomAccessIterator1 first1, RandomAccessIterator1 last1, RandomAccessIterator2 first2, RandomAccessIterator2 last2, Compare comp,
std::random_access_iterator_tag* std::random_access_iterator_tag*
@ -77,14 +84,45 @@ namespace sprout {
; ;
} }
// Copyright (C) 2011 RiSK (sscrisk)
template<typename InputIterator1, typename InputIterator2, typename Compare> template<typename InputIterator1, typename InputIterator2, typename Compare>
inline SPROUT_CONSTEXPR int inline SPROUT_CONSTEXPR sprout::pair<InputIterator1, InputIterator2>
tristate_lexicographical_compare_impl(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, Compare comp) { tristate_lexicographical_compare_impl_1(
return first2 == last2 ? (first1 == last1 ? 0 : 1) sprout::pair<InputIterator1, InputIterator2> current,
: first1 == last1 || comp(*first1, *first2) ? -1 InputIterator1 last1, InputIterator2 last2, Compare comp,
: comp(*first2, *first1) ? 1 typename std::iterator_traits<InputIterator1>::difference_type n
: sprout::detail::tristate_lexicographical_compare_impl(sprout::next(first1), last1, sprout::next(first2), last2, comp) )
{
typedef sprout::pair<InputIterator1, InputIterator2> type;
return current.second == last2 || current.first == last1 ? current
: n == 1 ? comp(*current.first, *current.second) ? type(last1, current.second)
: comp(*current.second, *current.first) ? type(current.first, last2)
: type(sprout::next(current.first), sprout::next(current.second))
: sprout::detail::tristate_lexicographical_compare_impl_1(
sprout::detail::tristate_lexicographical_compare_impl_1(
current,
last1, last2, comp, n / 2
),
last1, last2, comp, n - n / 2
)
;
}
template<typename InputIterator1, typename InputIterator2, typename Compare>
inline SPROUT_CONSTEXPR sprout::pair<InputIterator1, InputIterator2>
tristate_lexicographical_compare_impl(
sprout::pair<InputIterator1, InputIterator2> current,
InputIterator1 last1, InputIterator2 last2, Compare comp,
typename std::iterator_traits<InputIterator1>::difference_type n
)
{
typedef sprout::pair<InputIterator1, InputIterator2> type;
return current.second == last2 || current.first == last1 ? current
: sprout::detail::tristate_lexicographical_compare_impl(
sprout::detail::tristate_lexicographical_compare_impl_1(
current,
last1, last2, comp, n
),
last1, last2, comp, n * 2
)
; ;
} }
template<typename InputIterator1, typename InputIterator2, typename Compare> template<typename InputIterator1, typename InputIterator2, typename Compare>
@ -94,7 +132,11 @@ namespace sprout {
void* void*
) )
{ {
return sprout::detail::tristate_lexicographical_compare_impl(first1, last1, first2, last2, comp); typedef sprout::pair<InputIterator1, InputIterator2> type;
return sprout::detail::tristate_lexicographical_compare_impl_check(
last1, last2, comp,
sprout::detail::tristate_lexicographical_compare_impl(type(first1, first2), last1, last2, comp, 1)
);
} }
} // namespace detail } // namespace detail
@ -102,8 +144,7 @@ namespace sprout {
// tristate_lexicographical_compare // tristate_lexicographical_compare
// //
// recursion depth: // recursion depth:
// [first1, last1), [first2, last2) are RandomAccessIterator -> O(log N) // O(log(N1+N2))
// otherwise -> O(N)
// //
template<typename InputIterator1, typename InputIterator2, typename Compare> template<typename InputIterator1, typename InputIterator2, typename Compare>
inline SPROUT_CONSTEXPR int inline SPROUT_CONSTEXPR int
@ -209,29 +250,62 @@ namespace sprout {
} }
template<typename InputIterator1, typename T1, typename InputIterator2, typename T2, typename Compare> template<typename InputIterator1, typename T1, typename InputIterator2, typename T2, typename Compare>
inline SPROUT_CONSTEXPR int inline SPROUT_CONSTEXPR sprout::pair<InputIterator1, InputIterator2>
tristate_lexicographical_compare_2_impl( tristate_lexicographical_compare_impl_1(
InputIterator1 first1, InputIterator1 last1, T1 const& delim1, sprout::pair<InputIterator1, InputIterator2> current,
InputIterator2 first2, InputIterator2 last2, T2 const& delim2, InputIterator1 last1, T1 const& delim1, InputIterator2 last2, T2 const& delim2, Compare comp,
Compare comp typename std::iterator_traits<InputIterator1>::difference_type n
) )
{ {
return first2 == last2 || (!comp(*first2, delim2) && !comp(delim2, *first2)) ? (first1 == last1 || (!comp(*first1, delim1) && !comp(delim1, *first1)) ? 0 : 1) typedef sprout::pair<InputIterator1, InputIterator2> type;
: first1 == last1 || (!comp(*first1, delim1) && !comp(delim1, *first1)) || comp(*first1, *first2) ? -1 return current.second == last2 || current.first == last1 ? current
: comp(*first2, *first1) ? 1 : !comp(*current.second, delim2) && !comp(delim2, *current.second) ? type(!comp(*current.first, delim1) && !comp(delim1, *current.first) ? last1 : current.first, last2)
: sprout::detail::tristate_lexicographical_compare_2_impl(sprout::next(first1), last1, delim1, sprout::next(first2), last2, delim2, comp) : !comp(*current.first, delim1) && !comp(delim1, *current.first) ? type(last1, current.second)
: n == 1 ? comp(*current.first, *current.second) ? type(last1, current.second)
: comp(*current.second, *current.first) ? type(current.first, last2)
: type(sprout::next(current.first), sprout::next(current.second))
: sprout::detail::tristate_lexicographical_compare_impl_1(
sprout::detail::tristate_lexicographical_compare_impl_1(
current,
last1, delim1, last2, delim2, comp, n / 2
),
last1, delim1, last2, delim2, comp, n - n / 2
)
;
}
template<typename InputIterator1, typename T1, typename InputIterator2, typename T2, typename Compare>
inline SPROUT_CONSTEXPR sprout::pair<InputIterator1, InputIterator2>
tristate_lexicographical_compare_impl(
sprout::pair<InputIterator1, InputIterator2> current,
InputIterator1 last1, T1 const& delim1, InputIterator2 last2, T2 const& delim2, Compare comp,
typename std::iterator_traits<InputIterator1>::difference_type n
)
{
typedef sprout::pair<InputIterator1, InputIterator2> type;
return current.second == last2 || current.first == last1 ? current
: sprout::detail::tristate_lexicographical_compare_impl(
sprout::detail::tristate_lexicographical_compare_impl_1(
current,
last1, delim1, last2, delim2, comp, n
),
last1, delim1, last2, delim2, comp, n * 2
)
; ;
} }
template<typename InputIterator1, typename T1, typename InputIterator2, typename T2, typename Compare> template<typename InputIterator1, typename T1, typename InputIterator2, typename T2, typename Compare>
inline SPROUT_CONSTEXPR int inline SPROUT_CONSTEXPR int
tristate_lexicographical_compare_2( tristate_lexicographical_compare(
InputIterator1 first1, InputIterator1 last1, T1 const& delim1, InputIterator1 first1, InputIterator1 last1, T1 const& delim1,
InputIterator2 first2, InputIterator2 last2, T2 const& delim2, InputIterator2 first2, InputIterator2 last2, T2 const& delim2,
Compare comp, Compare comp,
void* void*
) )
{ {
return sprout::detail::tristate_lexicographical_compare_2_impl(first1, last1, delim1, first2, last2, delim2, comp); typedef sprout::pair<InputIterator1, InputIterator2> type;
return sprout::detail::tristate_lexicographical_compare_impl_check(
last1, last2, comp,
sprout::detail::tristate_lexicographical_compare_impl(type(first1, first2), last1, delim1, last2, delim2, comp, 1)
);
} }
} // namespace detail } // namespace detail
@ -239,8 +313,7 @@ namespace sprout {
// tristate_lexicographical_compare // tristate_lexicographical_compare
// //
// recursion depth: // recursion depth:
// [first1, last1), [first2, last2) are RandomAccessIterator -> O(log N) // O(log(N1+N2))
// otherwise -> O(N)
// //
template<typename InputIterator1, typename T1, typename InputIterator2, typename T2, typename Compare> template<typename InputIterator1, typename T1, typename InputIterator2, typename T2, typename Compare>
inline SPROUT_CONSTEXPR int inline SPROUT_CONSTEXPR int