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C++ implementation of quick sort using std::list

An C++ implementation of quick sort using std::list.
The code is as follow:


#include
using namespace std;
typedef list::iterator ITER;

void quicksort(list* seq, ITER middle, ITER end){
ITER iter = end;
ITER begin = middle;
if(middle == end) {
return;
}
else{
--iter;
}

ITER temp;
while(iter != middle){
if(*iter < *middle){
temp = iter;
--iter;
begin = seq->insert(begin,*temp);
seq->erase(temp);
}
else{
--iter;
}
}

quicksort(seq,begin,middle);
quicksort(seq,++middle,end);
}

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