#8573: prod(primes_first_n(64)).divisors() crashes
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Reporter: asdjughewou9474388 | Owner: tbd
Type: defect | Status: needs_work
Priority: minor | Milestone: sage-6.2
Component: basic arithmetic | Resolution:
Keywords: integer divisors | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Description changed by jdemeyer:
Old description:
> {{{
> sage: prod(primes_first_n(64)).divisors()
> ------------------------------------------------------------------------
> Unhandled SIGSEGV: A segmentation fault occurred in Sage.
> This probably occurred because a *compiled* component of Sage has a bug
> in it and is not properly wrapped with sig_on(), sig_off().
> Sage will now terminate.
> ------------------------------------------------------------------------
> }}}
> The crash is due to the fact that the number has exactly 2^64 divisors
> and this overflows a C integer.
New description:
{{{
sage: prod(primes_first_n(64)).divisors()
------------------------------------------------------------------------
Unhandled SIGSEGV: A segmentation fault occurred in Sage.
This probably occurred because a *compiled* component of Sage has a bug
in it and is not properly wrapped with sig_on(), sig_off().
Sage will now terminate.
------------------------------------------------------------------------
}}}
The crash is due to the fact that the number has exactly `2^64` divisors
and this overflows a C integer.
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Ticket URL: <http://trac.sagemath.org/ticket/8573#comment:6>
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