UnsignedInteger32

  • Import can read any file as a sequence of unsigned 32-bit integers.
  • Export writes a list of integers in the range to a binary file.
  • Background

      Sequence of unsigned 32-bit integers.
      Raw binary format.
      Equivalent to the Byte format.

    Import and Export

    • Import["file","UnsignedInteger32"] imports any file, returning a packed array of integers in the range .
    • Export["file",list,"UnsignedInteger32"] exports a list of integers in the range .
    • Import["file",{"UnsignedInteger32",elem}] or Import["file",elem ] imports the specified element from file.
    • Import["file",{"UnsignedInteger32",{elem1,elem2,}}] imports multiple elements.
    • See the reference pages for full general information on Import and Export.
    • ImportString and ExportString support the UnsignedInteger32 format.

    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",{"UnsignedInteger32",n}] gives the n^(th) 32-bit integer from file.
    • Trailing bytes are ignored if the size of the imported file is not a multiple of the data size.

    Options

    • General option:
    • ByteOrdering-1what byte ordering to use
    • Import option:
    • "HeaderBytes"0how many bytes to skip at the beginning of the file

    Examples

    Basic Examples  (1)

    Convert a list of integers to a string representing binary 32-bit unsigned integers:

    In[1]:=
    Click for copyable input
    Out[1]=

    Verify that the correct number of bytes was written:

    In[2]:=
    Click for copyable input
    Out[2]=

    Convert the binary data back to an expression:

    In[3]:=
    Click for copyable input
    Out[3]=

    See Also

    "Binary"  "Bit"  "Byte"  "Character8"  "Character16"  "Integer8"  "Integer16"  "Integer24"  "Integer32"  "Integer64"  "Integer128"  "UnsignedInteger8"  "UnsignedInteger16"  "UnsignedInteger64"  "UnsignedInteger128"  "Real32"  "Real64"  "Real128"  "Complex64"  "Complex128"  "Complex256"  "String"

    Introduced in 2004
    (5.1)
    | Updated in 2007
    (6.0)