24 lines
762 B
C++
24 lines
762 B
C++
template<typename T>
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std::list<T> parallel_quick_sort(std::list<T> input)
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{
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if(input.empty())
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{
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return input;
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}
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std::list<T> result;
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result.splice(result.begin(),input,input.begin());
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T const& pivot=*result.begin();
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auto divide_point=std::partition(input.begin(),input.end(),
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[&](T const& t){return t<pivot;});
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std::list<T> lower_part;
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lower_part.splice(lower_part.end(),input,input.begin(),
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divide_point);
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std::future<std::list<T> > new_lower(
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std::async(¶llel_quick_sort<T>,std::move(lower_part)));
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auto new_higher(
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parallel_quick_sort(std::move(input)));
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result.splice(result.end(),new_higher);
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result.splice(result.begin(),new_lower.get());
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return result;
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}
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