c++ 类与 swig 到 python 模块答案

【问题标题】：c++ classes with swig to python modulec++ 类与 swig 到 python 模块
【发布时间】：2016-04-29 05:09:11
【问题描述】：

我需要将此类 c++ 转换为 python 模块并给出错误 /* arexcrypt.h*/

#ifndef AREXCRYPT_H
#define AREXCRYPT_H

//Qt
#include <QString>
#include <QVector>
#include <QFlags>
//App
#include "singleton.h"

class ArexCrypt: public Singleton<ArexCrypt>
{
friend class Singleton<ArexCrypt>;

public:
enum Compression {
    IfReducedCompress,
    AlwaysCompress,
    NeverCompress
};
enum IntegrityCheck {
    NoCheck,
    ChecksumCheck,
    HashCheck
};
enum Error {
    NoneError,
    NoKeyError,
    NoDataError,
    UnknownVersionError,
    IntegrityError
};
enum CryptoFlag{
    NoneFlag = 0,
    CompressedFlag = 0x01,
    ChecksumFlag = 0x02,
    HashFlag = 0x04
};

Q_DECLARE_FLAGS(CryptoFlags, CryptoFlag);

void setKey(quint64 pKey);
Compression CompressionMode() const;
void setCompressionMode(Compression pMode);
IntegrityCheck IntegrityProtectionMode() const;
void setIntegrityProtectionMode(IntegrityCheck pMode);
Error LastError() const;

//METHODS
QString EncryptToString(const QString &pText);
QString DecryptToString(const QString &pEncryptedText);
QString GenerateIntegrityKey(const QString &pText);
bool CheckIntegrityKey(const QString &pText);

private:
//Data
quint64 key;
QVector<char> keyParts;
Compression compressionMode;
IntegrityCheck protectionMode;
Error lastError;
bool showConsoleMessages;

//CONTRUCTORS AND DESTROYERS
ArexCrypt();

//METHODS
void SplitKey();
void EncryptArray(QByteArray &pArray);
void DecryptArray(QByteArray &pArray);
QByteArray GenerateIntegrityData(QByteArray dataArray, CryptoFlags &flags);
QByteArray EncryptToByteArray(QByteArray pTextArray);
QByteArray DecryptToByteArray(QByteArray pEncryptedArray);
//OTHERS
QString EncryptToString(QByteArray pTextArray);
QString DecryptToString(QByteArray pEncryptedArray);
QByteArray EncryptToByteArray(const QString &pText);
QByteArray DecryptToByteArray(const QString &pEncryptedText);
};

Q_DECLARE_OPERATORS_FOR_FLAGS(ArexCrypt::CryptoFlags);

#endif // AREXCRYPT_H

/arexcrypt.i/

/* arexcrypt.i */
%module arexcrypt
%{
#include "arexcrypt.h"
%}

%import "singleton.i"
%include std_string.i
%include std_vector.i
%include stl.i
%include "arexcrypt.h"

/* singleton.h */

#ifndef SINGLETON_H
#define SINGLETON_H

template <typename T> struct Singleton
{
    static T &instance()
    {
        static T m_instance;
        return m_instance;
    }
protected:
    Singleton() { }
};

#endif // SINGLETON_H

/* singleton.i */

/* singleton.i */
%module singleton
%{
#include "singleton.h"
%}

%include "singleton.h"
%template(intSingleton) Singleton<int>;

然后当我转换为 python 时，我会在控制台上看到它

swig -c++ -python arexcrypt.i

arexcrypt.h(11)：警告 401：对基类“Singleton”一无所知。忽略。 arexcrypt.h(11) : 警告 401: 也许你忘记使用 %template 实例化 'Singleton'。 arexcrypt.h(40) ：警告 504：函数 ArexCrypt::Q_DECLARE_FLAGS(CryptoFlags,ArexCrypt::CryptoFlag) 必须具有返回类型。忽略。 arexcrypt.h(81) : 警告 503: 除非重命名为有效标识符，否则无法包装 'ArexCrypt::CryptoFlags'。

gcc -c arexcrypt_wrap.cxx -o arexcrypt.o -fpic -std=c++0x

我明白了

arexcrypt_wrap.cxx:1: warning: -fpic ignored for target (all code is position independent)
arexcrypt_wrap.cxx:171:21: error: Python.h: No such file or directory
arexcrypt_wrap.cxx:3027:4: error: #error "This python version requires swig to be run with the '-classic' option"
In file included from arexcrypt_wrap.cxx:3124:
arexcrypt.h:5:19: error: QString: No such file or directory
arexcrypt.h:6:19: error: QVector: No such file or directory
arexcrypt.h:7:18: error: QFlags: No such file or directory
arexcrypt_wrap.cxx:801: error: 'PyObject' was not declared in this scope
arexcrypt_wrap.cxx:801: error: 'str' was not declared in this scope
arexcrypt_wrap.cxx:802: error: expected ',' or ';' before '{' token
arexcrypt_wrap.cxx:825: error: expected initializer before '*' token
arexcrypt_wrap.cxx:851: error: expected initializer before '*' token
arexcrypt_wrap.cxx:905: error: expected initializer before '*' token
arexcrypt_wrap.cxx:920: error: 'inquiry' does not name a type
arexcrypt_wrap.cxx:921: error: 'intargfunc' does not name a type
arexcrypt_wrap.cxx:922: error: 'intintargfunc' does not name a type
arexcrypt_wrap.cxx:923: error: 'intobjargproc' does not name a type
arexcrypt_wrap.cxx:924: error: 'intintobjargproc' does not name a type
arexcrypt_wrap.cxx:925: error: 'getreadbufferproc' does not name a type
arexcrypt_wrap.cxx:926: error: 'getwritebufferproc' does not name a type
arexcrypt_wrap.cxx:927: error: 'getsegcountproc' does not name a type
arexcrypt_wrap.cxx:928: error: 'getcharbufferproc' does not name a type
arexcrypt_wrap.cxx:929: error: 'PyObject' was not declared in this scope
arexcrypt_wrap.cxx:929: error: 'x' was not declared in this scope
arexcrypt_wrap.cxx:929: error: expected primary-expression before 'void'
arexcrypt_wrap.cxx:929: error: initializer expression list treated as compound expression
arexcrypt_wrap.cxx:930: error: expected ',' or ';' before '{' token
In file included from c:\mingw64_4.4.6\bin\../lib/gcc/x86_64-w64-mingw32/4.4.6/../../../../x86_64-w64-mingw32/include/c++/4.4.6/stdexcept:38,
                 from arexcrypt_wrap.cxx:3051:
c:\mingw64_4.4.6\bin\../lib/gcc/x86_64-w64-mingw32/4.4.6/../../../../x86_64-w64-mingw32/include/c++/4.4.6/exception:35: error: expected declaration before end of line

任何人都知道我做错了什么

【问题讨论】：

对不起，我错过了一些东西
/*#ifndef SINGLETON_H #define SINGLETON_H 模板 struct Singleton { static T &instance() { static T m_instance;返回 m_instance； } 保护：Singleton() { } }; #endif // SINGLETON_H*/

标签： python c++ swig

【解决方案1】：

作为一项规则：始终查看 first 错误 - 这可能是你的罪魁祸首。

你的情况

arexcrypt_wrap.cxx:1: warning: -fpic ignored for target (all code is position independent)
arexcrypt_wrap.cxx:171:21: error: Python.h: No such file or directory

您缺少 python 开发文件。

【讨论】：