From: Jeremy Siek (jsiek_at_[hidden])
Date: 2001-07-26 09:04:37
The half_open_range class that Dave mentioned is basically the same idea
as the below range class.
On Thu, 26 Jul 2001 helmut.zeisel_at_[hidden] wrote:
>
> template<typename Iterator> struct range
> {
> Iterator m_begin;
> Iterator m_end;
> range(Iterator begin, Iterator end): m_begin(begin), m_end(end) {}
> Iterator begin() const {return m_begin;}
> Iterator end() const {return m_end;}
> typedef Iterator iterator;
> };
>
> template<typename Iterator> range<Iterator>
> make_range(Iterator begin, Iterator end)
> {
> return range<Iterator>(begin,end);
> }
>
> template<typename Range> void sort(Range& r)
> {
> std::sort(r.begin(), r.end());
> }
> template<typename Range, typename Out> void copy(Range& r, Out res)
> {
> typename Range::iterator it=r.begin();
> while(it != r.end())
> {
> *res++ = *it++;
> }
> }
>
> #include <algorithm>
> #include <vector>
> #include <iostream>
> int main()
> {
> std::vector<int> v;
> v.push_back(2);
> v.push_back(3);
> v.push_back(1);
> int w[]={3,2,4,1};
> static const int n = sizeof(w)/sizeof(int);
> sort(v);
> copy(v,std::ostream_iterator<int>(std::cout," "));
> std::cout << "\n";
> sort(make_range(w,w+n));
> copy(make_range(w,w+n),std::ostream_iterator<int>(std::cout," "));
>
> return 0;
> }
>
>
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>
>
>
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Jeremy Siek www: http://www.lsc.nd.edu/~jsiek/
Ph.D. Candidate, IU B'ton email: jsiek_at_[hidden]
Summer Manager, AT&T Research phone: (973) 360-8185
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