Files
concurrency-in-action/source/listing_4.12.cpp
2014-04-22 21:54:16 -04:00

25 lines
786 B
C++

template<typename T>
std::list<T> sequential_quick_sort(std::list<T> input)
{
if(input.empty())
{
return input;
}
std::list<T> result;
result.splice(result.begin(),input,input.begin());
T const& pivot=*result.begin();
auto divide_point=std::partition(input.begin(),input.end(),
[&](T const& t){return t<pivot;});
std::list<T> lower_part;
lower_part.splice(lower_part.end(),input,input.begin(),
divide_point);
auto new_lower(
sequential_quick_sort(std::move(lower_part)));
auto new_higher(
sequential_quick_sort(std::move(input)));
result.splice(result.end(),new_higher);
Using synchronization of operations to simplify code
result.splice(result.begin(),new_lower);
return result;
}