#15312: fix integer overflow (?) in conversion of powersums to Schur functions
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Reporter: zabrocki | Owner:
Type: defect | Status: new
Priority: critical | Milestone: sage-5.13
Component: combinatorics | Resolution:
Keywords: symmetric functions, | Merged in:
symmetrica, memleak | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by zabrocki):
Ok. I think that I can recreate the error in Symmetrica now.
Here is my test.c program:
{{{
#include "def.h"
#include "macro.h"
ANFANG
scan(POW_SYM,a);
t_POWSYM_SCHUR(a, b);
freeall(a);
freeall(b);
a=callocobject();
b=callocobject();
scan(POW_SYM,a);
t_POWSYM_SCHUR(a, b);
println(b);
ENDE
}}}
In the first `scan` I enter a power sum `p_{1^50}` with coefficient
integer 1. In the second `scan` I enter `p_{1^5}` with a bruch
coefficient of `1/1` and my output is:
{{{
-6917520240879580904 11111 -20.752587.120249.330592 1112
-27.670133.758739.499376
113 -20.752613.517859.918472 122 -20.752587.120249.330592 14
-20.752613.517859.918472
23 -6917520240879580904 5
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/15312#comment:7>
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