Calling same function with different number of parameters

[amanyasin]

HI

I want to call same function with different number of parameters. i know we can call same method with diffrent type of parameters but i need with different number of parameters.

like

myfunction ( para1, para2 para3);

myfunction (para1, para2);

[PanGalactic]

What behavior do you expect from myfunction() when para3 is missing?

[amanyasin]

Actually para3 is returning variable. if any one has no need of returning value of particular parameter. then he can miss in the function call. i want to keep it more general.

[PanGalactic]

Then you probably should have two functions:

myfunction(para1, para2, para3)
{
    ...
}

myfunction(para1, para2)
{
    para3;
    return myfunction(para1, para2, para3);
}

[Disch]

two options:

1) use a default parameter

void myfunction(int a, int b, int c = 0)
{
  // calling myfunction(1,2)  would be the same as calling myfunction(1,2,0)
}

2) overload the function

void myfunction(int a,int b)
{
  // called if only 2 params given
}

void myfunction(int a, int b, int c)
{
  // called if all 3 params given
}