[Issue 14469] file.readText on Win64 doesn't work for files > 4GB.

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14469

--- Comment #2 from Kenny Alive <artemalive at gmail.com> ---
The above algorithm for reading file has a bug. chunkSize should be calculated
like this:

uint chunkSize = min(size - totalNumRead, 0xffffffff);

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