This code doesn't compile and its error message doesn't even tell the line number: void main() { auto a = [1, 2, 3]; a[] ^^= 2; } DMD 2.057head gives: Error: must import std.math to use ^^ operator
https://github.com/D-Programming-Language/dmd/pull/537
https://github.com/D-Programming-Language/dmd/commit/68a8b14e917525be5f58d9459aae2a498af173af https://github.com/D-Programming-Language/dmd/commit/2f4ecaa8ddb09240942e5451308b46c8937b87e0