[ARROW-5514] [C++] Printer for uint64 shows wrong values

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.13.0
• Fix Version/s: 0.14.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/21962
• Assignee: Antoine Pitrou
• Reporter: Joris Van den Bossche
• Created: 05/Jun/19 08:00
• Updated: 11/Jan/23 07:40
• Resolved: 13/Jun/19 14:03

Description

From the example in ARROW-5430:

In [16]: pa.array([14989096668145380166, 15869664087396458664], type=pa.uint64())                                                                                                                                   
Out[16]: 
<pyarrow.lib.UInt64Array object at 0x7ff7c51bdf48>
[
  -3457647405564171450,
  -2577079986313092952
]

I think the actual conversion is correct, and it's only the printer that is going wrong, as to_numpy gives the correct values:

In [17]: pa.array([14989096668145380166, 15869664087396458664], type=pa.uint64()).to_numpy()                                                                                                                        
Out[17]: array([14989096668145380166, 15869664087396458664], dtype=uint64)

Issue Links

• links to: GitHub Pull Request #4545