1. Copy the self test cases under slang-2.2.4/src/test/ in compiling dir to target machine.

2. run sltest sort:

$./sltest sort.
Testing sorting ...Failed: simple sort: Char_Type [utf8=0]
./inc.sl:28:failed:Test Error
  Local variables for failed:
    String_Type s = "simple sort: Char_Type"
./sort.sl:27:test_simple_sort:Test Error
  Local variables for test_simple_sort:
    Integer_Type n = 2
    Integer_Type dir = 1
    Ref_Type cmp_op = &_op_lt
    Array_Type ishift = Integer_Type[2]
    Array_Type x = Char_Type[2]
    Array_Type dx = Double_Type[2]
    Undefined_Type bad = Undefined_Type
    DataType_Type type = Char_Type
./sort.sl:54:run_test_simple_sorts:Test Error
  Local variables for run_test_simple_sorts:
    String_Type method = "qsort"
./sort.sl:72:<top-level>:Test Error