Boost C++ Libraries

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Function template find_nth

boost::algorithm::find_nth — Find n-th algorithm.

Synopsis

// In header: <boost/algorithm/string/find.hpp>


template<typename Range1T, typename Range2T> 
  iterator_range< typename range_iterator< Range1T >::type > 
  find_nth(Range1T & Input, const Range2T & Search, int Nth);

Description

Search for the n-th (zero-indexed) occurrence of the substring in the input.

Parameters:

`Input`	A string which will be searched.
`Nth`	An index (zero-indexed) of the match to be found. For negative N, the matches are counted from the end of string.
`Search`	A substring to be searched for.

Returns:

An iterator_range delimiting the match. Returned iterator is either Range1T::iterator or Range1T::const_iterator, depending on the constness of the input parameter.