CGAL users discussion list

[Ronan Torrecillos <>]

Hi,

Do you run it in Debug mode ? You will see for Gmpz :
CGAL warning: check violation!
Expression : is_integer(d)

/ An object of the class Gmpz is an arbitrary precision integer based on the
GNU Multiple Precision Arithmetic Library.

Gmpz z ( double d);
        creates a multiple-precision integer initialized with the integral 
part of
d. /

So if you try with 1.8 it will be seen as 1. You need to use MP_float for
your input datas.

Plus, small changes on the datas will give small changes on the output.
For 2, you have objective value :8, 0:2, 1:3
For 1.8, you have objective value :5.6, 0:1.77, 1:3.2

For 1.8 with Gmpz (so with 1), the result will not be the same

Why do you think there is a problem ?



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