windows: incorrect split between high and low for position and offset

[dimichgh]

https://github.com/ozra/mmap-io/blob/master/src/mman.h#L52-L53
Should this be as below?

const DWORD dwEndLow = (sizeof(size_t) > sizeof(DWORD)) ? DWORD(end & 0x0000FFFFL) : DWORD(end);
const DWORD dwEndHigh = (sizeof(size_t) > sizeof(DWORD)) ? DWORD(end>>16) : DWORD(0);

For offset:
https://github.com/ozra/mmap-io/blob/master/src/mman.h#L54-L55

const DWORD dwOffsetLow = (sizeof(size_t) > sizeof(DWORD)) ? DWORD(offset & 0x0000FFFFL) : DWORD(offset);
const DWORD dwOffsetHigh = (sizeof(size_t) > sizeof(DWORD)) ? DWORD(offset>>16) : DWORD(0);

[ozra]

@toxicwolf - any ideas? Or @dimichgh - take a stab at it :-). PR's are welcome.

[jamsch0]

Sorry, I didn't have that much of a clue in the first place :/ I haven't done any javascript stuff for ages - I don't even run windows now.

[ozra]

Fixed via bkmartinjr