pub unsafe extern "C" fn roaring64_bitmap_portable_deserialize_size(
    buf: *const c_char,
    maxbytes: usize
) -> usize
Expand description

Check how many bytes would be read (up to maxbytes) at this pointer if there is a valid bitmap, returns zero if there is no valid bitmap.

This is meant to be compatible with other languages https://github.com/RoaringBitmap/RoaringFormatSpec#extension-for-64-bit-implementations