Bug 9252 – Wrong error message in a case of alias-this-array indexing with double value

This program shows a correct error message: void main() { int[5] a; double i = 0; a[i] = 0; } test.d(4): Error: cannot implicitly convert expression (i) of type double to uint While this code in a similar case shows a not good error message: struct Foo { int[] data = [0]; alias this = data; } void main() { Foo a; int i1 = 0; a[i1] = 10; // OK. assert(a.data[0] == 10); double i2 = 0; a[i2] = 20; // Error. } DMD 2.061alpha gives: test.d(11): Error: no [] operator overload for type Foo

dmd 2.081 shows: Error: cannot implicitly convert expression i2 of type double to ulong Which is the correct error. Closing as WORKSFORME