C++ Binding: changes for version 1.0c

The following changes were made between versions 1.0b and 1.0c of the ZOOM C++ binding:

1. Removed ugly Z3950_ prefixes from names.
2. Renamed search class to query.
3. Removed underscore from record-syntax names such as recordSyntax_GRS1.
4. Added recordSyntaxUKMARC.
5. Removed trailing comma from recordSyntax enumeration.
6. Added const suffix to:
   • connection::option()
   • connection::errcode()
   • connection::errmsg()
   • connection::addinfo()
   • resultSet::option()
   • resultSet::size()
   • resultSet::getRecord()
   • resultSet::getRecords()
   • resultSet::errcode()
   • resultSet::errmsg()
   • resultSet::addinfo()
   • record::field()
   • record::render()
   • record::rawdata()
7. Added virtual destructor declaration to:
   • query class
   • prefixQuery class
   • record class
8. Renamed prefix_query class to prefixQuery.
9. Added missing public: labels to the query subclasses.
10. Removed asimple_query class (implementation-specific)
11. Renamed resultSet's record() and records() method to getRecord() and getRecords().
12. Renamed resultSet::getRecords()'s parameter from np to psz.
13. Added overloaded resultSet::getRecords() method with interface corresponding with the abstract API's specification.
14. Made resultSet a friend of class connection.
15. Made all record methods virtual.
16. Added const to return value of
    • record::render()
    • record::rawdata()
17. Added new record subtypes:
    • MARCRecord class
    • UKMARCRecord class
    • USMARCRecord class
    • XMLRecord class
    • SUTRSRecord class
    • GRS1Record class
18. Renamed system_error to systemError.
19. Removed implementation details (private members) from systemError.
20. Renamed bib1_error to bib1Error.
21. Removed implementation details (private members) from bib1Error.

These changes represent the results of continuing dialogue over how best to represent the ZOOM API in idiomatic C++ terms.