| Find the lower bound and upper bound of a value within a range and return a pair of iterators . |
1)container
should be
sorted
firstly, 2) order
by default < or
bpred.
3) Sorted by
bpred, find by
bpred. |
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| Find the lower bound of a value within a range and return an iterator pointing to it. |
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| Find the upper bound of a value within a range and return an iterator pointing to it. |
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