If a module's function throws an exception, shouldn't that module publicly import that exception? Please observe:

$ cat errnoexception.d
import std.stdio;
//import std.exception;

void main()
{
    File file;
    try file = File("/non-existent-file");
    catch (ErrnoException e) {}
}
$ dmd errnoexception.d
errnoexception.d(8): Error: undefined identifier 'ErrnoException'

Uncommenting the import of std.exception solves the problem, but I believe it would make sense to have the exception *publicly* imported into std.stdio to avoid having the user to manually import it. Agreed?

(Currently the exception is just thrown in stdio.d by errnoEnforce in l 385 which is imported at l 383.)

-- 
Shriramana Sharma, Penguin #395953