Mega Code Archive
Return a reference to an array element
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#include <iostream>
using namespace std;
double &f(int i); // return a reference
double vals[] = { 1.1, 2.2, 3.3, 4.4, 5.5 };
int main()
{
int i;
cout << "Here are the original values: ";
for(i=0; i < 5; i++)
cout << vals[i] << ' ';
f(1) = 8.23; // change 2nd element
f(3) = -8.8; // change 4th element
cout << "\nHere are the changed values: \n";
for(i=0; i < 5; i++)
cout << vals[i] << ' ';
return 0;
}
double &f(int i)
{
return vals[i]; // return a reference to the ith element
}
Here are the original values: 1.1 2.2 3.3 4.4 5.5
Here are the changed values:
1.1 8.23 3.3 -8.8 5.5
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