Bug 3614 – empty tuples not assignable: Error: tuple has no effect in expression (tuple())

First off, this report is for 1.053, but I could select only up to 1.051. Apparently empty tuples can't be assigned, thus creating special cases whenever a tuple happens to have 0 elements. The following code fails to compile and I think it shouldn't: void foo(T...)(T a) { struct X { T a; } X x; x.a = a; //line 6 } void test() { foo!(int)(0); //works foo!()(); //fails } void main() {} Compilation fails with: a.d(6): Error: tuple has no effect in expression (tuple()) a.d(11): Error: template instance a.foo!() error instantiating Not sure how this is related to bug 3278 or bug 3600.

This has been fixed in D2 and D1 is no longer supported. Closing as fixed.