a question about conversion constructor

[hero0765]

hi:
a RationalNumber class is declared as follows:

class RationalNumber
{
public:
RationalNumber(int num = 0, int denom = 1) :
numerator(num), denominator(denom) {}
private:
int numerator, denominator;
};

Explain why the RationalNumber constructor is a conversion constructor.

If RationalNumber constructor has two or more arguments and no default values, can it be a conversion
constructor?

[kfmfe04]

we cannot answer your homework questions for you

what don't you understand? do you know what a conversion constructor is?

[zb0S216C]

It's simple. The answer is right in front of you. The only hint I can give you with answering the question is this: Think about how the constructor uses the arguments when a new instance of RationalNumber is created.

[Mathhead200]

int n = 10;
RationalNumber r = n;
/*
 * What's going to happen here?
 * Can we just take an int and assigned it to a RationalNumber?
 */