[Issue 6993] New: File.byLine runs on an empty file, fails enforcement

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=6993

           Summary: File.byLine runs on an empty file, fails enforcement
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: major
          Priority: P2
         Component: Phobos
        AssignedTo: nob...@puremagic.com
        ReportedBy: andrej.mitrov...@gmail.com


--- Comment #0 from Andrej Mitrovic <andrej.mitrov...@gmail.com> 2011-11-22 
21:04:53 PST ---
Create a new file "empty.d" and run this:

import std.stdio;

void main()
{
    auto file = File("empty.d", "r");
    foreach (aLine; file.byLine)
    {
    }
}

object.Exception@D:\DMD\dmd2\windows\bin\..\..\src\phobos\std\stdio.d(943):
Enforcement failed

Line 943:
enforce(file.isOpen);

So the file was not successfully opened, but why wasn't an exception thrown in
the File constructor then?

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