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.
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