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< div class = "section" id = "lower-bound" >
< h1 > lower_bound< a class = "headerlink" href = "#lower-bound" 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" > ForwardIterator< / span > < span class = "p" > ,< / span > < span class = "k" > typename< / span > < span class = "n" > T< / span > < span class = "o" > > < / span >
< span class = "kr" > inline< / span > < span class = "n" > SPROUT_CONSTEXPR< / span > < span class = "n" > ForwardIterator< / span >
< span class = "n" > lower_bound< / span > < span class = "p" > (< / span > < span class = "n" > ForwardIterator< / span > < span class = "n" > first< / span > < span class = "p" > ,< / span > < span class = "n" > ForwardIterator< / span > < span class = "n" > last< / span > < span class = "p" > ,< / span > < span class = "n" > T< / span > < span class = "k" > const< / span > < span class = "o" > & < / span > < span class = "n" > value< / span > < span class = "p" > );< / span >
< span class = "k" > template< / span > < span class = "o" > < < / span > < span class = "k" > typename< / span > < span class = "n" > ForwardIterator< / span > < span class = "p" > ,< / span > < span class = "k" > typename< / span > < span class = "n" > T< / 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 = "n" > ForwardIterator< / span >
< span class = "n" > lower_bound< / span > < span class = "p" > (< / span > < span class = "n" > ForwardIterator< / span > < span class = "n" > first< / span > < span class = "p" > ,< / span > < span class = "n" > ForwardIterator< / span > < span class = "n" > last< / span > < span class = "p" > ,< / span > < span class = "n" > T< / span > < span class = "k" > const< / span > < span class = "o" > & < / span > < span class = "n" > value< / span > < span class = "p" > ,< / span > < span class = "n" > Compare< / span > < span class = "n" > comp< / span > < span class = "p" > );< / span >
< / pre > < / div >
< / div >
< / div >
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< h2 > Requires< a class = "headerlink" href = "#requires" title = "Permalink to this headline" > ¶< / a > < / h2 >
< div class = "line-block" >
< div class = "line" > The elements e of [first,last) shall be partitioned with respect to the expression < tt class = "docutils literal" > < span class = "pre" > e< / span > < span class = "pre" > < < / span > < span class = "pre" > value< / span > < / tt > or < tt class = "docutils literal" > < span class = "pre" > comp(e,< / span > < span class = "pre" > value)< / span > < / tt > .< / 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" > The furthermost iterator i in the range [first,last] such that for any iterator j in the range [first,i) the following corresponding conditions hold: < tt class = "docutils literal" > < span class = "pre" > *j< / span > < span class = "pre" > < < / span > < span class = "pre" > value< / span > < / tt > or < tt class = "docutils literal" > < span class = "pre" > comp(*j,< / span > < span class = "pre" > value)< / span > < / tt > .< / 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/lower_bound.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" > input< / 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" > 5< / span > < span class = "p" > ,< / span > < span class = "mi" > 5< / span > < span class = "p" > ,< / span > < span class = "mi" > 5< / span > < span class = "p" > ,< / span > < span class = "mi" > 5< / 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" > result< / span > < span class = "o" > =< / span > < span class = "n" > sprout< / span > < span class = "o" > ::< / span > < span class = "n" > lower_bound< / span > < span class = "p" > (< / span > < span class = "n" > begin< / span > < span class = "p" > (< / span > < span class = "n" > input< / span > < span class = "p" > ),< / span > < span class = "n" > end< / span > < span class = "p" > (< / span > < span class = "n" > input< / span > < span class = "p" > ),< / span > < span class = "mi" > 5< / 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 = "n" > begin< / span > < span class = "p" > (< / span > < span class = "n" > input< / span > < span class = "p" > )< / span > < span class = "o" > ==< / span > < span class = "mi" > 3< / span > < span class = "p" > ,< / span > < span class = "s" > " a lower bound position is 3." < / span > < span class = "p" > );< / span >
< / pre > < / div >
< / div >
< / div >
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< 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" > log2(last< / span > < span class = "pre" > -< / span > < span class = "pre" > first)< / span > < span class = "pre" > +< / span > < span class = "pre" > O(1)< / span > < / tt > comparisons.< / div >
< div class = "line" > Recursive function invocations in < em > O(logN)< / em > (logarithmic) depth.< / div >
< / div >
< / div >
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< 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/lower_bound.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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