Doxygen fails to discover some methods of given struct

[wprzytula]

Problem

Consider CassDataType. Only part of methods on that type are shown in the generated docs. Examples of missing functions include cass_data_type_type and cass_data_type_is_frozen.

Cause

Doxygen apparently fails to parse const CassDataType* as a parameter of type CassDataType, therefore the function is not associated with that type in the docs. At the same time, Doxygen correctly discovers CassDataType* and CassDataType const* - the problem is about const preceding the type name.

Solution

ChatGPT offered two viable solutions:

1. (preferred) add \memberof CassDataType to all methods on CassDataType. The same for all methods of all structs.
2. Always write T const* instead of const T*.

As the 1. solution seems more robust, I'd go with it.

[wprzytula]

cc @Lorak-mmk

[Lorak-mmk]

It looks like some functions do have this memberof declaration, but some don't:

/**
 * Creates a new UDT (user defined type) data type.
 *
 * @public @memberof CassDataType
 *
 * @param[in] field_count The number of fields in the UDT
 * @return Returns a data type that must be freed.
 *
 * @see cass_data_type_free()
 */
CASS_EXPORT CassDataType*
cass_data_type_new_udt(size_t field_count);

/**
 * Frees a data type instance.
 *
 * @public @memberof CassDataType
 *
 * @param[in] data_type
 */
CASS_EXPORT void
cass_data_type_free(CassDataType* data_type);

/**
 * Gets the value type of the specified data type.
 *
 * @param[in] data_type
 * @return The value type
 */
CASS_EXPORT CassValueType
cass_data_type_type(const CassDataType* data_type);

so we just need to add missing ones.