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boost::algorithm::erase_head_copy — Erase head algorithm.
// In header: <boost/algorithm/string/erase.hpp> template<typename OutputIteratorT, typename RangeT> OutputIteratorT erase_head_copy(OutputIteratorT Output, const RangeT & Input, int N); template<typename SequenceT> SequenceT erase_head_copy(const SequenceT & Input, int N);
Remove the head from the input. The head is a prefix of a sequence of given size. If the sequence is shorter then required, the whole string is considered to be the head. The result is a modified copy of the input. It is returned as a sequence or copied to the output iterator.
| ![[Note]](../../../../doc/src/images/note.png) | Note | 
|---|---|
| The second variant of this function provides the strong exception-safety guarantee | 
| Parameters: | 
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| Returns: | An output iterator pointing just after the last inserted character or a modified copy of the input |