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## Function template copy_until

boost::algorithm::copy_until — Copies all the elements at the start of the input range that do not satisfy the predicate to the output range.

## Synopsis

    // In header: <boost/algorithm/cxx11/copy_if.hpp>

    template<typename Range, typename OutputIterator, typename Predicate>
      std::pair< typename boost::range_iterator< const Range >::type, OutputIterator >
      copy_until(const Range & r, OutputIterator result, Predicate p);

## Description

Parameters: |

`p` | A predicate for testing the elements of the range
`r` | The input range
`result` | An output iterator to write the results into

Returns: | The updated output iterator