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boost::algorithm::head_finder — "Head" finder
unspecified head_finder(unsigned int N);
Construct the head_finder . The finder returns a head of a given input. The head is a prefix of a string up to n elements in size. If an input has less then n elements, whole input is considered a head. The result is given as an iterator_range delimiting the match.
Parameters
The size of the head
Returns: An instance of the head_finder object
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