https://issues.dlang.org/show_bug.cgi?id=15537
Issue ID: 15537 Summary: Private function is not accessible from other module when compiling with -debug flag Product: D Version: D2 Hardware: All OS: All Status: NEW Severity: major Priority: P1 Component: dmd Assignee: nob...@puremagic.com Reporter: freeslav...@gmail.com Here's example: private { import std.algorithm; import std.range; import std.typecons; alias Tuple!(int, string) Data; } private bool myCmp(Data a, Data b) { return a[0] < b[0]; } auto bar() { return [Data(1, "one"), Data(2, "two")].assumeSorted!myCmp; } void main() { bar(); } It's compiled without errors when building without -debug flag. But adding -debug flag produces errors. Making myCmp public also solves the issue. Note: I could use anonymous function, but I need the named one, since I need to reuse it, while not making it public. --