3.10 Compatibility Interface and Examples

New applications should include SDDS.hpp. The older SDDS3.h header selects a deprecated SDDSFile adapter by default for common source-migration cases. The adapter does not preserve the old object layout, public storage fields, raw allocation modes, or complete historical method inventory. Defining SDDS3_ENABLE_UNMODERNIZED_API selects the archived original declarations and is not recommended for new work.

sdds::cppApiVersion identifies the source-level API generation. Source changes may occur in a future generation, so applications may test this constant at compile time when necessary.

The directory SDDSlib++/demo contains C++ counterparts to the C examples in SDDSlib/demo:

• sddspp_write_demo writes parameters, arrays, and columns of every SDDS scalar type.
• sddspp_read_demo reads any supported data set and prints values using its layout definitions.
• sddsppdemo writes and reads a compact binary data set using typed accessors and zero-copy row views.