26 lines
854 B
C++
26 lines
854 B
C++
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// constructing vectors
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#include <iostream>
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#include <vector>
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int main ()
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{
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unsigned int i;
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// constructors used in the same order as described above:
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std::vector<int> first; // empty vector of ints
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std::vector<int> second (4,100); // four ints with value 100
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std::vector<int> third (second.begin(),second.end()); // iterating through second
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std::vector<int> fourth (third); // a copy of third
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// the iterator constructor can also be used to construct from arrays:
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int myints[] = {16,2,77,29};
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std::vector<int> fifth (myints, myints + sizeof(myints) / sizeof(int) );
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std::cout << "The contents of fifth are:";
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for (std::vector<int>::iterator it = fifth.begin(); it != fifth.end(); ++it)
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std::cout << ' ' << *it;
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std::cout << '\n';
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return 0;
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}
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