Rename HDoff_t to hoff_t

[derobins]

hoff_t is in line with the other typedefs in H5public.h (hsize_t, etc.).

[qkoziol]

I disagree with the revised naming. The HDoff_t indicates that it's for portability betweens OS platforms' offset types. The 'hsize_t', haddr_t', etc. are HDF5-specific types and don't have anything to do with OS platforms. I believe that HDoff_t (and other platform portability types & function) should stay distinct from the HDF5 types.

[derobins]

I disagree with the revised naming. The HDoff_t indicates that it's for portability betweens OS platforms' offset types. The 'hsize_t', haddr_t', etc. are HDF5-specific types and don't have anything to do with OS platforms. I believe that HDoff_t (and other platform portability types & function) should stay distinct from the HDF5 types.

hsize_t is basically a platform-independent size. hbool_t was a platform-independent Boolean before bool was a standard.

[derobins]

I'm going to turn that H5Pset/get_external() parameter into a haddr_t so we don't have to expose a platform-independent off_t. HDoff_t will go back into H5private.h, where it belongs.