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[Octave-bug-tracker] [bug #53293] uint64 are truncated
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From: |
anonymous |
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Subject: |
[Octave-bug-tracker] [bug #53293] uint64 are truncated |
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Date: |
Tue, 6 Mar 2018 06:02:54 -0500 (EST) |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 |
Follow-up Comment #1, bug #53293 (project octave):
I got the same results in Debian GNU/Linux amd64.
But I think this is NOT a bug.
Because in Octave a numeric constant literal, such as 7189901176607676539,
18446744073709551615, 0xffffffffffffffff, is type of double.
(See also the help text of function "isinteger")
But IEEE754 double only has about 52-bit significant digit. As a result, the
lower bits of a large number is actually "truncated by double", not truncated
by uint64.
(See also the help text of function "flintmax")
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