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// unique_copy example
#include <iostream> // std::cout
#include <algorithm> // std::unique_copy, std::sort, std::distance
#include <vector> // std::vector
bool myfunction (int i, int j) {
return (i==j);
}
int main () {
int myints[] = {10,20,20,20,30,30,20,20,10};
std::vector<int> myvector (9); // 0 0 0 0 0 0 0 0 0
// using default comparison:
std::vector<int>::iterator it;
it=std::unique_copy (myints,myints+9,myvector.begin()); // 10 20 30 20 10 0 0 0 0
// ^
std::sort (myvector.begin(),it); // 10 10 20 20 30 0 0 0 0
// ^
// using predicate comparison:
it=std::unique_copy (myvector.begin(), it, myvector.begin(), myfunction);
// 10 20 30 20 30 0 0 0 0
// ^
myvector.resize( std::distance(myvector.begin(),it) ); // 10 20 30
// print out content:
std::cout << "myvector contains:";
for (it=myvector.begin(); it!=myvector.end(); ++it)
std::cout << ' ' << *it;
std::cout << '\n';
return 0;
}
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