Function template search_n

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## Function template search_n

boost::compute::search_n — Substring matching algorithm.

## Synopsis

    // In header: <boost/compute/algorithm/search_n.hpp>

    template<typename TextIterator, typename ValueType>
      TextIterator
      search_n(TextIterator t_first, TextIterator t_last, size_t n,
               ValueType value, command_queue & queue = system::default_queue());

## Description

Searches for the first occurrence of n consecutive occurrences of value in text [t_first, t_last).

Parameters:

`n` | Number of times value repeats
`queue` | Queue on which to execute
`t_first` | Iterator pointing to start of text
`t_last` | Iterator pointing to end of text
`value` | Value which repeats

Returns: | Iterator pointing to beginning of first occurrence