compare two vector
#include <vector>
#include <iostream>
using namespace std;
int main(int argc, char** argv)
{
vector<int> v1(10, 0);
vector<int> v2(10, 0);
if (v1 == v2) {
cout << "equal!\n";
} else {
cout << "not equal!\n";
}
v1[3] = 50;
if (v1 < v2) {
cout << "v1 is less than v2\n";
} else {
cout << "v1 is not less than v2\n";
}
return (0);
}Compare two vectors: !=
#include <iostream>
using std::cout;
using std::cin;
using std::endl;
#include <iomanip>
using std::setw;
#include <vector>
using std::vector;
int main()
{
vector< int > integers1( 7 ); // 7-element vector< int >
vector< int > integers2( 10 ); // 10-element vector< int >
size_t i;
for ( i = 0; i < integers1.size(); i++ ){
cout << integers1[ i ];
}
for ( i = 0; i < integers2.size(); i++ ){
cout << integers2[ i ];
}
cout << "\nEvaluating: integers1 != integers2" << endl;
if ( integers1 != integers2 )
cout << "integers1 and integers2 are not equal" << endl;
return 0;
}00000000000000000
Evaluating: integers1 != integers2
integers1 and integers2 are not equal
vector assignment
#include <iostream>
using std::cout;
using std::cin;
using std::endl;
#include <iomanip>
using std::setw;
#include <vector>
using std::vector;
int main()
{
vector< int > integers1( 7 ); // 7-element vector< int >
vector< int > integers2( 10 ); // 10-element vector< int >
size_t i;
for ( i = 0; i < integers1.size(); i++ ){
cout << integers1[ i ];
}
for ( i = 0; i < integers2.size(); i++ ){
cout << integers2[ i ];
}
cout << "\nAssigning integers2 to integers1:" << endl;
integers1 = integers2; // integers1 is larger than integers2
// use equality (==) operator with vector objects
if ( integers1 == integers2 )
cout << "integers1 and integers2 are equal" << endl;
return 0;
}00000000000000000
Assigning integers2 to integers1:
integers1 and integers2 are equal
