34 lines
873 B
C++
34 lines
873 B
C++
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A vector may allocate more memory than it currently needs.
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#include <iostream>
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#include <vector>
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using namespace std;
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int main()
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{
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vector<char> vectorObject(10);
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cout << "Initial size: " << vectorObject.size() << endl;
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cout << "Initial capacity: " << vectorObject.capacity();
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cout << "\n\n";
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vectorObject.push_back('X');
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cout << "Size after push_back: " << vectorObject.size() << endl;
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cout << "New capacity: " << vectorObject.capacity();
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cout << "\n\n";
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vectorObject.resize(100);
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cout << "Size after resize: " << vectorObject.size() << endl;
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cout << "Capacity after resize: " << vectorObject.capacity();
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cout << "\n\n";
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vectorObject.push_back('Y');
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cout << "Size after push_back: " << vectorObject.size() << endl;
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cout << "New capacity: " << vectorObject.capacity();
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cout << "\n\n";
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return 0;
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}
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