Question

I have a struct type:

struct test1
{            
  public int a;
  public int b;
  public double c;
  public string d;
}

following line gives me “clear” struct object wich fields was initialized with their default values:

test1 tt = default(test1);
// tt.a will be equal 0

But now, I desire to have opportunity predefine default values for some fields in the struct type. For example, I want field a to have 25 as a default value.

Is it possible to force default operator initialize my struct with my predefined default values?

Answer 1

No it is not possible.

The different types already have clear defaults:

• null for reference types.
• 0 or 0.0 for integer and float types.

I believe that the default DateTime is simply the interpretation of the above for its internal fields (0 * 100 nanoseconds from epoch).

You can’t override or change how the default operator works.