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On 04/14/2016 04:52 PM, Jonathan Wakely wrote:
> On 14/04/16 15:47 +0100, Jonathan Wakely wrote:
>> On 14/04/16 15:42 +0100, Jonathan Wakely wrote:
>>> On 14/04/16 06:34 -0400, Igor Gnatenko wrote:
>>>> ascxx/curve.h: class Curve : public Instanc{ friend class
>>>> std::vector<Curve>; private: friend class Plot; explicit
>>>> Curve(const Instanc &); Curve(); public: Curve(const Curve
>>>> &); std::vector<double> x; std::vector<double> y; const
>>>> std::string getLegend() const;
>>>>
>>>> /** Get the curve format string, as used by matplotlib.
>>>> Documented here:
>>>>
>>>> http://matplotlib.sourceforge.net/api/axes_api.html#matplotlib.axes.Axes.plot
>>>>
>>>>
>>>>
>>>>
(This value is not used by the Tcl/Tk GUI.)
>>>> */ const std::string getFormat() const; };
>>>>
>>>> ascxx/ascpy.i: %ignore Curve::Curve();
>>>>
>>>> %include "curve.h"
>>>>
>>>>
>>>> It should be ignored by SWIG, but looks like it's not...
>>>
>>> I don't think that's the problem.
>>>
>>> In C++98 constructing std::vector<X> v(1); would invoke X's
>>> default constructor in the caller's context, so if the default
>>> constructor is private then the caller must be a member or
>>> friend of X.
>>>
>>> In C++11 the default constructor will be invoked deep inside
>>> std::vector, or one of its helper functions.
>>>
>>> The code is basically invalid in C++11. It should either make
>>> the default constructor public (the simplest fix), or change
>>> how the vector is constructed (which seems to come from Swig,
>>> so might be difficult).
>>
>> Having managed to do a mock build (very slow wifi in the building
>> I'm in now) I see the error comes from this line, where arg1 is
>> vector<Curve>::size_type:
>>
>> result = (std::vector< Curve > *)new std::vector< Curve >(arg1);
>>
>> Which is exactly what I guessed. That is not valid C++11 if the
>> Curve default constructor is private.
>
> I can also confirm that making the Curve default constructor
> public allows the build to complete.
>
> --
Ehm ...
How exactly?
Thanks for yours replies.
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Antonio Trande
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