Bug 12432 – Diagnostic on argument count mismatch for ranges and opApply should improve

import std.algorithm; void foo(string line) { foreach (int i,string tok; splitter(line, " ")) {} } ~/dmd2/linux/bin64/dmd -c junk.d junk.d(5): Error: cannot infer argument types This is dmd 2.065.0 on ubuntu 64 bit. Removing the int i fixes the problem. I think I recall seeing something about trying to use an index variable with a forward range. It's nice to be able to use the var, even if I'm not trying to index into the range. More importantly, the error message is completely opaque.

Commits pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/a38a23830977a42f9b36a51d7e4e7a6e9b917ad1 Fix Issue 12432 - Implement better diagnostics for argument count mismatch in range and opApply contexts. https://github.com/D-Programming-Language/dmd/commit/86d59a72df020fedc6e3bc87a885fa969121ea3e Merge pull request #3396 from AndrejMitrovic/Fix12432 Issue 12432 - Better diagnostics for argument count mismatch in range and opApply