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[Octave-bug-tracker] [bug #41359] Output formatting inconsistency for in
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From: |
Glenn Golden |
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Subject: |
[Octave-bug-tracker] [bug #41359] Output formatting inconsistency for integers > 2^52 |
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Date: |
Mon, 27 Jan 2014 14:44:12 +0000 |
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User-agent: |
Opera/9.80 (X11; Linux i686) Presto/2.12.388 Version/12.16 |
Follow-up Comment #2, bug #41359 (project octave):
Interesting, I see what you mean. Need an integer test that's independent of
the float EPS.
Fwiw -- perhaps nothing, just an observation -- printf %.16g does get it
right:
+verbose+
> a = 2^52 + (-5:5);
> printf("a: %.16gn", a)
a: 4503599627370491
a: 4503599627370492
a: 4503599627370493
a: 4503599627370494
a: 4503599627370495
a: 4503599627370496
a: 4503599627370497
a: 4503599627370498
a: 4503599627370499
a: 4503599627370500
a: 4503599627370501
-verbose-
So might be worth a look at how the integer test is being handled there.
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