This structure may grow in the future, indicated by the
The platform data property fields help determine if a data file can be efficiently used on a given machine. The particular fields are of importance only if the data is affected by the properties - if there is integer data with word sizes > 1 byte, char* text, or UChar* text.
The implementation for the
udata_open[Choice]() functions may reject data based on the value in
isBigEndian. No other field is used by the
udata API implementation.
dataFormat may be used to identify the kind of data, e.g. a converter table.
formatVersion field should be used to make sure that the format can be interpreted. I may be a good idea to check only for the one or two highest of the version elements to allow the data memory to get more or somewhat rearranged contents, for as long as the using code can still interpret the older contents.
dataVersion field is intended to be a common place to store the source version of the data; for data from the Unicode character database, this could reflect the Unicode version. ICU 2.0