What to do with InvalidMemoryOperationError

["Nordlöw" via Digitalmars-d-learn]

On Wednesday, 21 January 2015 at 12:10:20 UTC, Nordlöw wrote:
> On Wednesday, 21 January 2015 at 12:00:47 UTC, Nordlöw wrote:
>> My executable throws as
>>
>>    core.exception.InvalidMemoryOperationError@(0)
>
> I've tracked it down to being caused by
>
>     foreach (line; File(path).byLine) {}
>
> when path contains a very large text file (392 MB, 1658080 
> lines).
>
> Do I have any alternatives to this that doesn't trigger 
> exception?

I get the exact same behaviour when I try using MmFile instead:

     import std.mmfile: MmFile;
     auto mmf = new MmFile(path, MmFile.Mode.read, 0, null, 
pageSize);
     const data = cast(char[])mmf[];
     foreach (line; data.splitter('\n') {}

Does byLine use splitter? If so, maybe splitter is the problem...