https://issues.dlang.org/show_bug.cgi?id=17473
--- Comment #5 from Eyal <e...@weka.io> --- (In reply to Vladimir Panteleev from comment #4) > Adding `ref` to `char a` fixes compilation, but it's still weird that > `ref`'s presence is inconsistently needed. It also changes the meaning of the program in an undesired way. --