[pkg-boost-devel] Bug#844495: Bug#844490: FTBFS with boost1.62

Steve M. Robbins steve at sumost.ca
Sun Nov 20 04:12:06 UTC 2016

On Wednesday, November 16, 2016 12:16:22 PM CST Thibaut Paumard wrote:
> Control: tags 844490 +pending
> Control: severity 844495 normal
> For the record, the bug appears when doing:
> acos(cos(alpha100)*cos(delta100));
> where the type of alpha100 and delta100 is
> boost::multiprecision::cpp_dec_float_100.
> I've realized that, when acos() does not return, delta100 above is
> always zero. I can simplify the case by simply doing
> acos(cos(alpha100))
> in which case acos() also does not return. Does not look like a memory
> leak after all.
> However, doing just that in an isolated main function does not exhibit
> the bug (I've also tried activating all the hardening features)

So when you say "doing just that" in isolated main ... do you mean

Did you succeed to find any small test case at all?  It would be good to have 
one and report it upstream.

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