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< div class = "section" id = "tristate-lexicographical-compare" >
< h1 > tristate_lexicographical_compare< a class = "headerlink" href = "#tristate-lexicographical-compare" title = "Permalink to this headline" > ¶< / a > < / h1 >
< div class = "section" id = "interface" >
< h2 > Interface< a class = "headerlink" href = "#interface" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "highlight-c++" > < div class = "highlight" > < pre > < span class = "k" > template< / span > < span class = "o" > < < / span > < span class = "k" > typename< / span > < span class = "n" > InputIterator1< / span > < span class = "p" > ,< / span > < span class = "k" > typename< / span > < span class = "n" > InputIterator2< / span > < span class = "o" > > < / span >
< span class = "kr" > inline< / span > < span class = "n" > SPROUT_CONSTEXPR< / span > < span class = "kt" > int< / span >
< span class = "n" > tristate_lexicographical_compare< / span > < span class = "p" > (< / span >
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< span class = "n" > InputIterator1< / span > < span class = "n" > first1< / span > < span class = "p" > ,< / span > < span class = "n" > InputIterator1< / span > < span class = "n" > last1< / span > < span class = "p" > ,< / span >
< span class = "n" > InputIterator2< / span > < span class = "n" > first2< / span > < span class = "p" > ,< / span > < span class = "n" > InputIterator2< / span > < span class = "n" > last2< / span >
< span class = "p" > );< / span >
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< span class = "k" > template< / span > < span class = "o" > < < / span > < span class = "k" > typename< / span > < span class = "n" > InputIterator1< / span > < span class = "p" > ,< / span > < span class = "k" > typename< / span > < span class = "n" > InputIterator2< / span > < span class = "p" > ,< / span > < span class = "k" > typename< / span > < span class = "n" > Compare< / span > < span class = "o" > > < / span >
< span class = "kr" > inline< / span > < span class = "n" > SPROUT_CONSTEXPR< / span > < span class = "kt" > int< / span >
< span class = "n" > tristate_lexicographical_compare< / span > < span class = "p" > (< / span >
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< span class = "n" > InputIterator1< / span > < span class = "n" > first1< / span > < span class = "p" > ,< / span > < span class = "n" > InputIterator1< / span > < span class = "n" > last1< / span > < span class = "p" > ,< / span >
< span class = "n" > InputIterator2< / span > < span class = "n" > first2< / span > < span class = "p" > ,< / span > < span class = "n" > InputIterator2< / span > < span class = "n" > last2< / span > < span class = "p" > ,< / span >
< span class = "n" > Compare< / span > < span class = "n" > comp< / span >
< span class = "p" > );< / span >
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< / pre > < / div >
< / div >
< / div >
< div class = "section" id = "returns" >
< h2 > Returns< a class = "headerlink" href = "#returns" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "line-block" >
< div class = "line" > A value less than zero if the sequence of elements defined by the range [first1,last1) is lexicographically less than the sequence of elements defined by the range [first2,last2) and false otherwise.< / div >
< div class = "line" > A value greater than zero if the sequence of elements defined by the range [first1,last1) is lexicographically greater than the sequence of elements defined by the range [first2,last2) and false otherwise.< / div >
< div class = "line" > Otherwise, returns a zero value.< / div >
< / div >
< / div >
< div class = "section" id = "remarks" >
< h2 > Remarks< a class = "headerlink" href = "#remarks" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "line-block" >
< div class = "line" > If two sequences have the same number of elements and their corresponding elements are equivalent, then neither sequence is lexicographically less than the other.< / div >
< div class = "line" > If one sequence is a prefix of the other, then the shorter sequence is lexicographically less than the longer sequence.< / div >
< div class = "line" > Otherwise, the lexicographical comparison of the sequences yields the same result as the comparison of the first corresponding pair of elements that are not equivalent.< / div >
< / div >
< div class = "line-block" >
< div class = "line" > An empty sequence is lexicographically less than any non-empty sequence, but not less than any empty sequence.< / div >
< / div >
< / div >
< div class = "section" id = "examples" >
< h2 > Examples< a class = "headerlink" href = "#examples" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "highlight-c++" > < div class = "highlight" > < pre > < span class = "cp" > #include < sprout/algorithm/tristate_lexicographical_compare.hpp> < / span >
< span class = "cp" > #include < sprout/array.hpp> < / span >
< span class = "cp" > #include < sprout/container.hpp> < / span >
< span class = "k" > using< / span > < span class = "k" > namespace< / span > < span class = "n" > sprout< / span > < span class = "p" > ;< / span >
< span class = "n" > SPROUT_STATIC_CONSTEXPR< / span > < span class = "k" > auto< / span > < span class = "n" > input1< / span > < span class = "o" > =< / span > < span class = "n" > array< / span > < span class = "o" > < < / span > < span class = "kt" > int< / span > < span class = "p" > ,< / span > < span class = "mi" > 10< / span > < span class = "o" > > < / span > < span class = "p" > {{< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "mi" > 2< / span > < span class = "p" > ,< / span > < span class = "mi" > 3< / span > < span class = "p" > ,< / span > < span class = "mi" > 4< / span > < span class = "p" > ,< / span > < span class = "mi" > 5< / span > < span class = "p" > ,< / span > < span class = "mi" > 6< / span > < span class = "p" > ,< / span > < span class = "mi" > 7< / span > < span class = "p" > ,< / span > < span class = "mi" > 8< / span > < span class = "p" > ,< / span > < span class = "mi" > 9< / span > < span class = "p" > ,< / span > < span class = "mi" > 10< / span > < span class = "p" > }};< / span >
< span class = "n" > SPROUT_STATIC_CONSTEXPR< / span > < span class = "k" > auto< / span > < span class = "n" > input2< / span > < span class = "o" > =< / span > < span class = "n" > array< / span > < span class = "o" > < < / span > < span class = "kt" > int< / span > < span class = "p" > ,< / span > < span class = "mi" > 10< / span > < span class = "o" > > < / span > < span class = "p" > {{< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "mi" > 2< / span > < span class = "p" > ,< / span > < span class = "mi" > 3< / span > < span class = "p" > ,< / span > < span class = "mi" > 4< / span > < span class = "p" > ,< / span > < span class = "mi" > 5< / span > < span class = "p" > ,< / span > < span class = "mi" > 6< / span > < span class = "p" > ,< / span > < span class = "mi" > 7< / span > < span class = "p" > ,< / span > < span class = "mi" > 11< / span > < span class = "p" > ,< / span > < span class = "mi" > 12< / span > < span class = "p" > ,< / span > < span class = "mi" > 13< / span > < span class = "p" > }};< / span >
< span class = "n" > SPROUT_STATIC_CONSTEXPR< / span > < span class = "k" > auto< / span > < span class = "n" > result< / span > < span class = "o" > =< / span > < span class = "n" > sprout< / span > < span class = "o" > ::< / span > < span class = "n" > tristate_lexicographical_compare< / span > < span class = "p" > (< / span > < span class = "n" > begin< / span > < span class = "p" > (< / span > < span class = "n" > input1< / span > < span class = "p" > ),< / span > < span class = "n" > end< / span > < span class = "p" > (< / span > < span class = "n" > input1< / span > < span class = "p" > ),< / span > < span class = "n" > begin< / span > < span class = "p" > (< / span > < span class = "n" > input2< / span > < span class = "p" > ),< / span > < span class = "n" > end< / span > < span class = "p" > (< / span > < span class = "n" > input2< / span > < span class = "p" > ));< / span >
< span class = "n" > static_assert< / span > < span class = "p" > (< / span > < span class = "n" > result< / span > < span class = "o" > < < / span > < span class = "mi" > 0< / span > < span class = "p" > ,< / span > < span class = "s" > " input1 < input2 by lexicographical comparison." < / span > < span class = "p" > );< / span >
< / pre > < / div >
< / div >
< / div >
< div class = "section" id = "complexity" >
< h2 > Complexity< a class = "headerlink" href = "#complexity" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "line-block" >
< div class = "line" > At most < tt class = "docutils literal" > < span class = "pre" > 2*min((last1< / span > < span class = "pre" > -< / span > < span class = "pre" > first1),< / span > < span class = "pre" > (last2< / span > < span class = "pre" > -< / span > < span class = "pre" > first2))< / span > < span class = "pre" > +< / span > < span class = "pre" > O(1)< / span > < / tt > applications of the corresponding comparison.< / div >
< div class = "line" > Recursive function invocations in < em > O(logN)< / em > (logarithmic) depth.< / div >
< / div >
< / div >
< div class = "section" id = "header" >
< h2 > Header< a class = "headerlink" href = "#header" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "line-block" >
< div class = "line" > < tt class = "docutils literal" > < span class = "pre" > sprout/algorithm/tristate_lexicographical_compare.hpp< / span > < / tt > < / div >
< div class = "line" > Convenience header: < tt class = "docutils literal" > < span class = "pre" > sprout/algorithm.hpp< / span > < / tt > < / div >
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