Function cassandra_cpp_sys::cass_value_secondary_sub_type [−] [src]

pub unsafe extern "C" fn cass_value_secondary_sub_type(
    collection: *const CassValue
) -> CassValueType

Get the secondary sub-type for a collection. This returns the value type for a map.

@public @memberof CassValue

@param[in] collection @return The type of the primary sub-type. CASS_VALUE_TYPE_UNKNOWN returned if not a collection or not a map.