Mega Code Archive
Insert and erase
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#include <iostream>
#include <vector>
using namespace std;
int main()
{
vector<char> v(10);
vector<char> v2;
char str[] = "<Vector>";
unsigned int i;
for(i=0; i<10; i++) v[i] = i + 'a';
// copy characters in str into v2
for(i=0; str[i]; i++)
v2.push_back(str[i]);
// display original contents of vector
cout << "Original contents of v:\n";
for(i=0; i<v.size(); i++) cout << v[i] << " ";
cout << "\n\n";
vector<char>::iterator p = v.begin();
p += 2; // point to 3rd element
// insert 10 X's into v
v.insert(p, 10, 'X');
// display contents after insertion
cout << "Size after inserting X's = " << v.size() << endl;
cout << "Contents after insert:\n";
for(i=0; i<v.size(); i++) cout << v[i] << " ";
cout << "\n\n";
// remove those elements
p = v.begin();
p += 2; // point to 3rd element
v.erase(p, p+10); // remove next 10 elements
// display contents after deletion
cout << "Size after erase = " << v.size() << endl;
cout << "Contents after erase:\n";
for(i=0; i<v.size(); i++) cout << v[i] << " ";
cout << "\n\n";
// Insert v2 into v
v.insert(p, v2.begin(), v2.end());
cout << "Size after v2's insertion = ";
cout << v.size() << endl;
cout << "Contents after insert:\n";
for(i=0; i<v.size(); i++) cout << v[i] << " ";
cout << endl;
return 0;
}
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