You can use a subobject to initialize en masse. A member works, but then you need to qualify all access. So inheritance is better:
struct MoneyData
{
double amountP, amountG, totalChange;
int twenty, ten, five, one, change;
int quarter, dime, nickel, penny;
};
struct Money : MoneyData
{
void foo();
Money() : MoneyData() {} /* value initialize the base subobject */
};
Demonstration (placement new
is used to make sure the memory is non-zero before object creation): http://ideone.com/P1nxN6
Contrast with a slight variation on the code in the question: http://ideone.com/n4lOdj
In both of the above demos, double
members are removed to avoid possible invalid/NaN encodings.