Associative Array of structs

[Zane]

I tried writing to an associative array and got the exception:

tango.core.Exception.ArrayBoundsException at test(15): Array index out of bounds

the program below causes the exception:

module test;

import tango.io.Stdout;
import tango.io.Console;
	
struct S {uint i;}
		
int main()
{
	S[char[]] s;
	
	s["test"].i = 1;	

	Stdout.format("Done!").flush;

	return 0;
}

But the program below works fine:

module test;

import tango.io.Stdout;
import tango.io.Console;
	
struct S {uint i;}
		
int main()
{
	S[char[]] s;
	
	S t;
	t.i = 1;
		
	s["test"] = t;

	Stdout.format("Done!").flush;

	return 0;
}

Am I supposed to be able to do both methods, or is the second the only possible way?  Some explanation would be very helpful.

Thanks for your time,
Zane