Re: Enum type deduction inside templates is not working

[pgtkda via Digitalmars-d-learn]

On Friday, 27 June 2014 at 06:04:20 UTC, Uranuz wrote:

Compiler can't deduce type for template struct Pair when using it with enum argument. There is an example

import std.stdio;

enum Category { first, second, third };

struct Pair(F, S)
{
        F first;
        S second;
        
        this(F f, S s)
        {
                first = f;
                second = s;
        }
}


void main()
{
        auto p = Pair(Category.first, "first"); //It fails
        
        writeln(p);
}

Is it not working for some reason or I'm doing something wrong or is it just lack of implementation? How I could make this working without explicit specifying of types?

is this a solution for your problem?


enum Category { first, second, third };

struct Pair
{
        Category cat;
        string second;
        this(Category cat, string second){
                this.cat = cat, this.second = second;
        }
}
void main(){
        auto p = Pair(Category.first, "first");
        writeln(p);
}