Returns the list of API levels in this SDK.
Values are returned as a struct with the following fields: struct( abi_revision = "0xED74D73009C2B4E3", api_level = "10", as_u32 = 10, status = "unsupported" )
as_u32
is interesting in the case of special API levels like HEAD
.
clang only wants to be passed API levels in their numeric form.
The status is not an API to be relied on but the STATUS_* constants can be used.