C++ Programming - Functions - Discussion

According to me, The order of the default argument will be left to right.

Thanks @Musaddique.

excellent session, Thanks @Musaddique.

Amazing! @Musaddique.

Order will be right to left.

void PrintValues(int nValue1, int nValue2=10)
{
using namespace std;
cout << "1st value: " << nValue1 << endl;
cout << "2nd value: " << nValue2 << endl;
}

int main()
{
PrintValues(1); // nValue2 will use default parameter of 10
PrintValues(3, 4); // override default value for nValue2
}

output
1st value: 1
2nd value: 10
1st value: 3
2nd value: 4


In the first function call, the caller did not supply an argument for nValue2, so the function used the default value of 10. In the second call, the caller did supply a value for nValue2, so the user-supplied value was used.