G_do_hoelder: fix case with real x values which are not of type cl_R.
authorStefan Weinzierl <weinzierl@uni-mainz.de>
Wed, 12 Dec 2018 21:53:12 +0000 (22:53 +0100)
committerRichard Kreckel <kreckel@ginac.de>
Wed, 12 Dec 2018 21:53:12 +0000 (22:53 +0100)
In CLN, a complex number of type cl_N with vanishing imaginary part is not
necessarily a real number of type cl_R.

This bug has been reported by T. Huber.


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