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软件工程.NET开发
vector的size、capacity和max_size

作者:未知 来源:月光软件站 加入时间:2005-2-28 月光软件站

#include <iostream>
#include <algorithm>
#include <vector>
#include <iterator>
#include <string>
using namespace std;

int main(void)
{
 vector<string> coll;
 coll.reserve(4);
 coll.push_back("hey!");
 coll.push_back("how");
 coll.push_back("are");
 coll.push_back("you!");
 copy(coll.begin(), coll.end(),
   ostream_iterator<string>(cout," "));
 cout << endl;
 cout << "coll_size: " << coll.size() << endl;
 cout << "coll_capacity: " << coll.capacity() << endl;
 cout << "coll_max_size: " << coll.max_size() << endl;
 coll.insert(find(coll.begin(), coll.end(), "how"), "jie,");
 copy(coll.begin(), coll.end(),
   ostream_iterator<string>(cout," "));
 cout << endl;
 cout << "coll_size: " << coll.size() << endl;
 cout << "coll_capacity: " << coll.capacity() << endl;
 cout << "coll_max_size: " << coll.max_size() << endl;
 vector<string>(coll).swap(coll);
 copy(coll.begin(), coll.end(),
   ostream_iterator<string>(cout," "));
 cout << endl;
 cout << "coll_size: " << coll.size() << endl;
 cout << "coll_capacity: " << coll.capacity() << endl;
 cout << "coll_max_size: " << coll.max_size() << endl;
 return 0;
}       




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