Partial ordering of constructors with type parameters

Charles McAnany via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Wed Apr 23 09:44:35 PDT 2014


Friends,

I have a class that needs two constructors:

class Foo{
     this(int x){}
     this(T)(T x) if(!is(T == int)){}
}
void main(){}

But this does not compile because the two constructors conflict:

buggy.d(3): Error: template buggy.Foo.__ctor(T)(T x) if (!is(T == 
int)) conflicts with constructor buggy.Foo.this at buggy.d(2)

Of course, I can just have one constructor that doesn't have the 
constraint and then use a static if to redirect to a private 
method, but that seems clunky to me. (not to mention it would 
complicate the documentation.)

Any ideas?

Cheers,
Charles McAnany.




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