XDR Data Types
- boolean
- int – 32-bit integer
- unsigned int – unsigned 32-bit integer
- hyper – 64-bit integer
- unsigned hyper – unsigned 64-bit integer
- IEEE float
- IEEE double
- quadruple (new in RFC1832)
- enumeration
- structure
- string
- fixed length array
- variable length array
- union – discriminated union
- fixed length opaque data
- variable length opaque data
- void – zero byte quantity
- optional – optional data is notated similarly to C pointers, but is represented as the data type "pointed to" with a boolean "present or not" flag.
Read more about this topic: External Data Representation
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