perl -v

This is perl 5, version 16, subversion 3 (v5.16.3) built for MSWin32-x64-multi-thread

cpan Math::Int128


<snip>

t/00-report-prereqs.t ..... ok
t/author-eol.t ............ skipped: these tests are for testing by the author
t/author-no-tabs.t ........ skipped: these tests are for testing by the author
t/author-pod-spell.t ...... skipped: these tests are for testing by the author
t/bugs.t .................. ok
t/Math-Int128.t ........... 1/?
#   Failed test 'max int128 >> 95'
#   at t/Math-Int128.t line 174.
#          got: '4294967295'
#     expected: '1'
# $max >> $j = 4294967295, $max / 2 ** $j = 1, $max = 17014118346046923173168730
3715884105727, $j = 95, 2 ** $j = 39614081257132169000000000000.000000, int128(2
 ** $j) = 39614081257132168796771975168

#   Failed test 'max int128 >>= 95'
#   at t/Math-Int128.t line 183.
#          got: '4294967295'
#     expected: '1'
t/Math-Int128.t ........... Dubious, test returned 148 (wstat 37888, 0x9400)
Failed 2/785 subtests
t/Math-UInt128.t .......... 1/?
#   Failed test 'max uint128 >> 95'
#   at t/Math-UInt128.t line 172.
#          got: '8589934591'
#     expected: '1'

#   Failed test 'max uint128 >>= 95'
#   at t/Math-UInt128.t line 176.
#          got: '8589934591'
#     expected: '1'
<snip>