1
나는 C++ 클래스를 가지고 있으므로 파이썬 코드에서 사용해야합니다. 이를 위해 swig를 사용하여 래퍼 클래스를 생성합니다. 문서에 따라, 본보기swig 빌드 문제 - python
/* File: example.i */
%module example
%{
#define SWIG_FILE_WITH_INIT
#include "item.h"
#include "GradedComplex.h"
#include "GradedDouble.h"
%}
%include "item.h"
%include "GradedComplex.h"
%include "GradedDouble.h"
를 구성 그리고 나는 다음과 같은 오류를 얻고 두 번째 명령을 실행 한 후 창
c:>swig -c++ -python example.i
c:>python setup.py build_ext --inplace
에 꿀꺽 꿀꺽를 사용하여 래퍼 클래스를 구축을 위해 노력하고 있습니다.
example_wrap.cxx
C:\Program Files\Microsoft Visual Studio 9.0\VC\INCLUDE\xlocale(342) : warning C
4530: C++ exception handler used, but unwind semantics are not enabled. Specify
/EHsc
c:\documents and settings\swig\item.h(73) : warning C45
21: 'Item<std::complex<double>>' : multiple copy constructors specified
c:\documents and settings\swig\item.h(57) : error C2106
: '+=' : left operand must be l-value
c:\documents and settings\swig\item.h(58) : error C2106
: '+=' : left operand must be l-value
c:\documents and settings\swig\item.h(63) : error C2106
: '-=' : left operand must be l-value
c:\documents and settings\swig\item.h(64) : error C2106
: '-=' : left operand must be l-value
c:\documents and settings\swig\item.h(69) : error C2106
: '=' : left operand must be l-value
c:\documents and settings\swig\item.h(70) : error C2106
: '=' : left operand must be l-value
example_wrap.cxx(3275) : error C2512: 'Item<std::complex<double>>' : no appropriate default constructor available
c:\documents and settings\swig\Item.h(38) : warning C45
21: 'Item<T>' : multiple copy constructors specified
with
[
T=double
]
example_wrap.cxx(3425) : see reference to class template instantiation '
Item<T>' being compiled
with
[
T=double
]
error: command '"C:\Program Files\Microsoft Visual Studio 9.0\VC\BIN\cl.exe"' fa
iled with exit status 2
item.h 당신은 C++ 코드에서 오류가 다음
#ifndef __ITEM_H__
#define __ITEM_H__
#include <complex>
#include <functional>
#include <string>
template<typename T>
class Item
{
std::string name_;
T val_;
public:
Item(std::string name, T val) : name_(name), val_(val) {}
Item(Item<T> &rhs) : name_(rhs.name_), val_(rhs.val_) {}
Item(const Item<T> &rhs) : name_(rhs.name_), val_(rhs.val_) {}
~Item() {}
std::string name() const { return name_; }
T operator()() const { return val_; }
double norm() const { return sqrt(val_ * val_); }
Item<T> &operator+=(Item<T> &rhs)
{
val_ += rhs();
return *this;
}
Item<T> &operator-=(Item<T> &rhs)
{
val_ -= rhs();
return *this;
}
Item<T> &operator*=(Item<T> &rhs)
{
val_ *= rhs();
return *this;
}
};
template<>
class Item<std::complex<double> >
{
std::string name_;
std::complex<double> val_;
public:
Item(std::string name, std::complex<double> val) : name_(name), val_(val) {}
Item(Item<std::complex<double> > &rhs) : name_(rhs.name_), val_(rhs.val_) {}
Item(const Item<std::complex<double> > &rhs) : name_(rhs.name_), val_(rhs.val_) {}
~Item() {}
std::string name() const { return name_; }
std::complex<double> operator()() const { return val_; }
double norm() const { return sqrt(val_.real() * val_.real() + val_.imag() * val_.imag()); }
Item<std::complex<double> > &operator+=(Item<std::complex<double> > &rhs)
{
val_.real() += rhs().real();
val_.imag() += rhs().imag();
return *this;
}
Item<std::complex<double> > &operator-=(Item<std::complex<double> > &rhs)
{
val_.real() -= rhs().real();
val_.imag() -= rhs().imag();
return *this;
}
Item<std::complex<double> > &operator*=(Item<std::complex<double> > &rhs)
{
val_.real() = val_.real() * rhs().real() - val_.imag() * rhs().imag();
val_.imag() = val_.real() * rhs().imag() + val_.imag() * rhs().real();
return *this;
}
};
template<typename T>
struct ItemComparator : public std::binary_function<Item<T>, Item<T>, bool>
{
inline bool operator()(Item<T> lhs, Item<T> rhs)
{
return lhs.norm() < rhs.norm();
}
};
#endif
감사 :
이당신은 그냥이 사용할 수 –