databases/pickle/test/pickle-test.c: Avoid warning "comparison of unsigned enum expression < 0 is always false" by casting values via unsigned int.
databases/pickle/test/pickle-test.c: Avoid warning "comparison of unsigned enum expression < 0 is always false" by casting values via unsigned int.

The range of the enum is chosen by the compiler so on some toolchains it will be int, on others it could be something else. Therefore this is the most robust way to avoid the warning.

dpt/DPTLib