undefined behavior in GMP 5.1.2

[Vincent Lefevre]

On 2013-09-21 11:57:42 +0200, Marc Glisse wrote:
> >>mul.c:81:31: runtime error: signed integer overflow:
> >>-5260204364771764878 + -5260204364771764878 cannot be represented in
> >>type 'long'
> 
> We don't check for underflow in mpf multiplication, I didn't touch that.
> People should use mpfr ;-)

Shouldn't the test be removed since it is known to be buggy?

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