Struct initialization using member syntax without variable

Jacob Carlborg via Digitalmars-d digitalmars-d at
Thu Jan 14 02:32:07 PST 2016

To initialize a struct with the member names a variable is required. 

struct Foo
     int a;
     int b;

Foo foo = { a: 3, b: 4 };

That's a bit annoying when you want to pass the struct to a function or 
return it.

Foo bar()
     return { a: 3, b: 4 }; // error

void bar(Foo foo);

bar({ a: 3, b: 4 }); // error

Is there any reason for this limitation? I guess it will make function 
overloading more difficult, but that could easily be solved with the 
following syntax:

bar(Foo{ a: 3, b: 4 });

Or this:

bar(Foo(a: 3, b: 4));

This would also allow one to use "auto" when declaring a variable:

auto foo = Foo{ a: 3, b: 4 };

/Jacob Carlborg

More information about the Digitalmars-d mailing list