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50 lines
1.7 KiB
ReStructuredText
50 lines
1.7 KiB
ReStructuredText
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.. _sprout-algorithm-min_element:
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###############################################################################
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min_element
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###############################################################################
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Interface
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========================================
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.. sourcecode:: c++
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template<typename ForwardIterator>
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inline SPROUT_CONSTEXPR ForwardIterator
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min_element(ForwardIterator first, ForwardIterator last);
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template<typename ForwardIterator, typename Compare>
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inline SPROUT_CONSTEXPR ForwardIterator
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min_element(ForwardIterator first, ForwardIterator last, Compare comp);
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Returns
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========================================
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| The first iterator i in the range [first,last) such that for any iterator j in the range [first,last) the following corresponding conditions hold: ``!(*j < *i)`` or ``!comp(*j, *i)``.
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| Returns last if ``first == last``.
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Examples
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========================================
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.. sourcecode:: c++
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#include <sprout/algorithm/min_element.hpp>
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#include <sprout/array.hpp>
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#include <sprout/container.hpp>
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using namespace sprout;
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SPROUT_STATIC_CONSTEXPR auto input = array<int, 10>{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}};
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SPROUT_STATIC_CONSTEXPR auto result = sprout::min_element(begin(input), end(input));
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static_assert(*result == 1, "a min element is 1.");
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static_assert(result - begin(input) == 0, "a min element position is 0.");
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Complexity
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========================================
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| Exactly ``max((last - first) - 1, 0)`` applications of the corresponding comparisons.
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| Recursive function invocations in *O(logN)* (logarithmic) depth.
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Header
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========================================
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| ``sprout/algorithm/min_element.hpp``
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| Convenience header: ``sprout/algorithm.hpp``
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