digitalmars.D.bugs - [Issue 20673] New: Improve error message for opDollar in pointers
- d-bugmail puremagic.com (30/30) Mar 15 2020 https://issues.dlang.org/show_bug.cgi?id=20673
https://issues.dlang.org/show_bug.cgi?id=20673 Issue ID: 20673 Summary: Improve error message for opDollar in pointers Product: D Version: D2 Hardware: All OS: All Status: NEW Keywords: diagnostic Severity: enhancement Priority: P1 Component: dmd Assignee: nobody puremagic.com Reporter: pro.mathias.lang gmail.com A very common beginner mistake: ``` void main () { int* ptr; assert(ptr[0 .. $] == [1, 2, 3]); } ``` This will yield the following message: ``` diagxxx.d(4): Error: undefined identifier __dollar ``` Not quite as informative as it could be. This could be a good starting task for someone wanting to touch DMD. The error is produced here: https://github.com/dlang/dmd/blob/631473e8746050bd743fe238ba343c079e0f25e0/src/dmd/expressionsem.d#L2721 --
Mar 15 2020