Read text file fast, how?

[Brandon Ragland via Digitalmars-d]

On Sunday, 26 July 2015 at 15:36:29 UTC, Andrei Alexandrescu 
wrote:
> On 7/26/15 10:35 AM, Johan Holmberg via Digitalmars-d wrote:
>> [...]
>
> I think we should investigate this and bring performance to 
> par. Anyone interested? -- Andrei

Here's the link to the fstream libstc++ source for GNU /linux 
(Ubuntu / Debian)

https://gcc.gnu.org/onlinedocs/libstdc++/libstdc++-html-USERS-4.0/fstream-source.html

Not to sure who's all familiar with it but it uses the 
basic_streambuf underneath.