can't I use __traits(allMembers) recursivly ?

[Tobias Pankrath]

On Thursday, 23 January 2014 at 23:42:26 UTC, Uplink_Coder wrote:
> When I try to
>
> struct _pod_ {
>   string s1;
>   enum e1 { v1,v2 };
> }
>
> auto printPod(Pod)() if (__traits(isPOD,Pod)) {
> 	string result;
> 	foreach (member;__traits(allMembers,Pod) ) {
> 		auto _member=__traits(getMember,Pod,member);
> 	}
>         writeln(result);
> }
> void main() {printPod!(_pod_);}
>
> I get
> Error: need 'this' for 's1' of type 'string'
> Error: type e1 has no value

__traits(getMember, Pod, member) is the same as Pod.member. In 
your case Pod is _pod_, so in the end you are trying to access an 
non-static member via the struct type. That cannot work and the 
error message tells you exactly that in errorspeak.

Since you are never appending to result your code has some more 
flaws and I'm not sure what you are trying to do? Do you try to 
mirror std.conv.to!string?