Re: how to disable all default N-argument constructors for a struct?

[Era Scarecrow via Digitalmars-d]

On Tuesday, 4 July 2017 at 00:46:36 UTC, Timothee Cour wrote:
How would I disable the following?
```
auto a1=A(1);
auto a2=A(1, "b");

struct A{
  int a;
  string b;
  // @disable default constructors with N(N>=1) arguments
}
```

I'd like to force the user to set fields explicitly, so as to 
make it more safe to add / move fields

 As soon as a class defines at least one constructor, the 
implicit default constructor is not avaliable anymore. - TDPL pg. 
182


So to answer your question, define a constructor. perhaps:

  this(int _a, string_b) {a=_a; b=_b;}

then:

  auto a1=A(1);      //fails
  auto a2=A(1, "b"); //passes