Background & Context

    • Sequence of unsigned 128-bit integers.
    • Raw binary format.
    • Equivalent to the Byte format.

Import & Export

  • Import["file","UnsignedInteger128"] imports any file, returning a packed array of integers in the range .
  • Export["file",list,"UnsignedInteger128"] exports a list of integers in the range to file.
  • Import["file",{"UnsignedInteger128",elem}] or Import["file",elem ] imports the specified element from file.
  • Import["file",{"UnsignedInteger128",{elem1,elem2,}}] imports multiple elements.
  • See the reference pages for full general information on Import and Export.
  • ImportString and ExportString support the UnsignedInteger128 format.

Import Elements

  • General Import elements:
  • "Elements" elements and options available in this file
    "Rules"full rules for each element and option
    "Options"rules for options, properties, and settings
  • Data representation element:
  • "Data"list of integers in the range
  • By default, Import and Export use the "Data" element.
  • Import["file",{"UnsignedInteger128",n}] gives the n^(th) 128-bit integer from file.
  • Trailing bytes are ignored if the size of the imported file is not a multiple of the data size.



Basic Examples  (1)

Convert a list of integers to a string representing a sequence of binary 128-bit integers:

In the previous output, each exported integer is taking up 16 bytes:

Convert the binary data back to an expression:

Import the same data, assuming it represents signed integers:

Introduced in 2004
Updated in 2007