mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-29 01:03:45 +00:00
65 lines
2.6 KiB
Text
65 lines
2.6 KiB
Text
|
.. _sprout-algorithm-equal:
|
||
|
|
###############################################################################
|
||
|
|
equal
|
||
|
|
###############################################################################
|
||
|
|
|
||
|
|
Interface
|
||
|
|
========================================
|
||
|
|
.. sourcecode:: c++
|
||
|
|
|
||
|
|
template<typename InputIterator1, typename InputIterator2, typename BinaryPredicate>
|
||
|
|
inline SPROUT_CONSTEXPR bool
|
||
|
|
equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, BinaryPredicate pred);
|
||
|
|
|
||
|
|
template<typename InputIterator1, typename InputIterator2>
|
||
|
|
inline SPROUT_CONSTEXPR bool
|
||
|
|
equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2);
|
||
|
|
|
||
|
|
template<typename InputIterator1, typename InputIterator2, typename BinaryPredicate>
|
||
|
|
inline SPROUT_CONSTEXPR bool
|
||
|
|
equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2, BinaryPredicate pred);
|
||
|
|
|
||
|
|
template<typename InputIterator1, typename InputIterator2>
|
||
|
|
inline SPROUT_CONSTEXPR bool
|
||
|
|
equal(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, InputIterator2 last2);
|
||
|
|
|
||
|
|
Remarks
|
||
|
|
========================================
|
||
|
|
|
||
|
|
| If last2 was not given in the argument list, it denotes ``first2 + (last1 - first1)`` below.
|
||
|
|
|
||
|
|
Returns
|
||
|
|
========================================
|
||
|
|
|
||
|
|
| If ``last1 - first1 != last2 - first2``, return false.
|
||
|
|
| Otherwise return true if for every iterator i in the range [first1,last1) the following corresponding conditions hold: ``*i == *(first2 + (i - first1))``, ``pred(*i, *(first2 + (i - first1)))``.
|
||
|
|
| Otherwise, returns false.
|
||
|
|
|
||
|
|
Examples
|
||
|
|
========================================
|
||
|
|
.. sourcecode:: c++
|
||
|
|
|
||
|
|
#include <sprout/algorithm/equal.hpp>
|
||
|
|
#include <sprout/array.hpp>
|
||
|
|
#include <sprout/container.hpp>
|
||
|
|
using namespace sprout;
|
||
|
|
|
||
|
|
SPROUT_STATIC_CONSTEXPR auto input1 = array<int, 10>{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}};
|
||
|
|
SPROUT_STATIC_CONSTEXPR auto input2 = array<int, 10>{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}};
|
||
|
|
SPROUT_STATIC_CONSTEXPR auto result = sprout::equal(begin(input1), end(input1), begin(input2), end(input2));
|
||
|
|
static_assert(result, "input2 equals to input1.");
|
||
|
|
|
||
|
|
Complexity
|
||
|
|
========================================
|
||
|
|
|
||
|
|
| No applications of the corresponding predicate if InputIterator1 and InputIterator2 meet the requirements of random access iterators and ``last1 - first1 != last2 - first2``.
|
||
|
|
| Otherwise, at most ``min(last1 - first1, last2 - first2)`` applications of the corresponding predicate.
|
||
|
|
| Recursive function invocations in *O(logN)* (logarithmic) depth.
|
||
|
|
|
||
|
|
Header
|
||
|
|
========================================
|
||
|
|
|
||
|
|
| ``sprout/algorithm/equal.hpp``
|
||
|
|
| Convenience header: ``sprout/algorithm.hpp``
|
||
|
|
|