default values

[sasi1217]

Give an example to illustrate the use of default values. Does it make compiling more efficient? Does it make the object code shorter? Why do we use it?

[coder777]

void SetValue(const int val = 0);

int main()
{
  SetValue();
  SetValue(123);

  return 0;
}

void SetValue(const int val)
{
  SomeValue = val;
}

Does it make compiling more efficient?

No

Does it make the object code shorter?

See above.

Why do we use it?

As a hint.