[ffi] ulong type looses precision in 64bit mode #6376
Description
Environment Information
Provide at least:
jruby 9.3.0.0-SNAPSHOT (2.6.5) 2020-08-29 34d51ab Java HotSpot(TM) 64-Bit Server VM 11.0.2+9-LTS on 11.0.2+9-LTS +jit [linux-x86_64]
it's represented as "long"
Expected Behavior
should pass tests
Actual Behavior
1) Struct tests ulong field r/w (8000000000000000)
Failure/Error: s[:v] = obj
RangeError:
bignum too big to convert into `long'
# ./spec/ffi/struct_spec.rb:346:in `test_num_field'
# ./spec/ffi/struct_spec.rb:357:in `block in int_field_test'
2) Struct tests ulong field r/w (ffffffffffffffff)
Failure/Error: s[:v] = obj
RangeError:
bignum too big to convert into `long'
# ./spec/ffi/struct_spec.rb:346:in `test_num_field'
# ./spec/ffi/struct_spec.rb:357:in `block in int_field_test'
refs #6375