#15888: CC -> PARI: return t_REAL for real numbers
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Reporter: jdemeyer | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.2
Component: interfaces | Resolution:
Keywords: | Merged in:
Authors: Jeroen Demeyer | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jdemeyer/ticket/15888 | 988c1f8870435bac8fb097e4d6a8aad62f84d19e
Dependencies: | Stopgaps:
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Comment (by pbruin):
It would seem to make sense to treat purely imaginary numbers similarly,
by setting the real component to the `t_INT` 0, as PARI does. With your
patch,
{{{
sage: pari(CC(1))
1.00000000000000
sage: pari(CC(I))
0.E-19 + 1.00000000000000*I
sage: _.debug()
[&=0000000004a45468] COMPLEX(lg=3):0c00000000000003 0000000004a45458
0000000004a45440
real = [&=0000000004a45458] REAL(lg=2):0400000000000002
(0,expo=-64):1fffffffffffffc0
imag = [&=0000000004a45440] REAL(lg=3):0400000000000003
(+,expo=0):6000000000000000 8000000000000000
sage: pari('1.0*I')
1.00000000000000*I
sage: _.debug()
[&=000000000332b280] COMPLEX(lg=3):0c00000000000003 000000000332b270
000000000332b250
real = [&=000000000332b270] INT(lg=2):0200000000000002
(0,lgefint=2):0000000000000002
imag = [&=000000000332b250] REAL(lg=4):0400000000000004
(+,expo=0):6000000000000000 8000000000000000 0000000000000000
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/15888#comment:3>
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