Default arguments in functions?

[Madhan]

hi,

why don't we have a default argument in functions as like in C++?

for example in C++ we can able to create a function like

void SimpleInterest(int principal,int months,int rate=15)
{

----Code goes here!
}

I can able to call this function from main with 3 arguments or 2
arguments(in this case the value for rate is 15).

Centura has to consider this?

Madhan