c – 错误：’)’令牌之前的预期primary-expression

2023年8月7日 282次阅读

我已多次尝试解决这个问题,但我一无所获.

此代码的主要用途是在嵌套类NslObject :: KeyK或NewKeyPair1中保存对键(公共和私有).

.cpp文件

        unsigned long int keyLength = 10;
        //KeyPair ADD(RSA::GenerateKeyPair(keyLength));
        NslObject::KeyK(RSA::GenerateKeyPair(keyLength));
        typedef NslObject::KeyK NewKeyPair1; 
        NewKeyPair1(RSA::GenerateKeyPair(keyLength));

        //NslObject::
        Key OtmanK(NslObject::Get_PublicKey(NewKeyPair1));

.h文件：

 #ifndef    __NCTUNS_nslobject_h__
 #define __NCTUNS_nslobject_h__

 #include <stdio.h>
 #include <event.h>

 //---------------------------------------------------
 #include <cstdlib>      //srand()
 #include <iostream>     //cout
 #include <ctime>        //time()
 #include <cstring>      //strcmp()
 //#include "test.h"       //testing functions
 #include "RSA.h"        //GenerateKeyPair()
 #include "PrimeGenerator.h"     //Generate()
 //#include <stdio.h>
 #include <stdlib.h>
 #include <sstream> 
 #include <string>


 //---------------------------------------------------

 class MBinder;

  struct plist {
u_int8_t        pid;
struct plist            *next;
 };

  struct MBlist {
u_int8_t    portnum;
MBinder     *sendt;
struct MBlist   *next;
 };
 /*=========================================================================
 Define Macros
 =========================================================================*/
 #define DISABLED       0x00
 #define ENABLED            0x01


 /*=========================================================================
 Define Class ProtoType
 =========================================================================*/

 class NslObject {

 private: 

char        *name_;     /* Instance name */
const u_int32_t nodeID_;    /* Node Id */
const u_int32_t nodeType_;  /* Node type, eg: SWITCH, HOST.. */
u_int32_t   portid_;    /* port Id */
struct plist    *MPlist_;
   // static  KeyPair  NewKeyPair;


  public :
/* add for new structure engine*/
    u_int32_t       pdepth;
    struct MBlist   *BinderList;
    u_int8_t       PortNum;

//------------------------------------------------
    class KeyK {
    private :
         KeyPair Kk; 

    public:

      KeyK( KeyPair D1): Kk(D1)
      {}

     const  Key &GetPrivateKey() const
            {
                    return Kk.GetPrivateKey();
            }

     const  Key &GetPublicKey() const
            {
                    return Kk.GetPublicKey();
            }

       //KeyK  NewKeyPair ;


     };

     Key Get_PrivateKey(KeyK &K){
        return K.GetPrivateKey();
     }
      Key Get_PublicKey(KeyK &K){
        return K.GetPublicKey();
     }


    //static KeyPair  *KeyPtr1 ;//= new KeyPair;
    //------------------------------------------------
u_char          s_flowctl;      /* flow control for sending pkt */
u_char          r_flowctl;      /* flow control for receiving pkt */

MBinder     *recvtarget_;   /* to upper component */
MBinder     *sendtarget_;   /* to lower component */


NslObject(u_int32_t, u_int32_t, struct plist*, const char *);
NslObject();
virtual         ~NslObject();   
virtual int     init();
virtual int     recv(ePacket_ *); 
virtual int     send(ePacket_ *); 
virtual int     get(ePacket_ *, MBinder *);
virtual int     put(ePacket_ *, MBinder *);
virtual ePacket_    *put1(ePacket_ *, MBinder *);
virtual int     command(int argc, const char *argv[]); 
virtual int     Debugger();


inline  void    set_port(u_int32_t portid) { 
        portid_ = portid; 
    };   
inline u_int32_t get_port() const { 
        return(portid_); 
    }; 
inline struct plist* get_portls() const {
        return(MPlist_);
    };
inline const char * get_name() const {
        return(name_);
    }
inline u_int32_t get_nid() const {
        return(nodeID_);
    }
inline u_int32_t get_type() const {
        return(nodeType_);
    }
    //--------------------------------------------------------





  };

那么,cpp文件中这一行的问题：

 Key OtmanK(NslObject::Get_PublicKey(NewKeyPair1));

当我试图编译这个项目时,我收到此错误消息：

 object.cc:87: error: expected primary-expression before ‘)’ token

请帮我.

当我试图对密钥类进行定向调用时,出现了另一个问题,例如：

        unsigned long int keyLength = 10;
        //KeyPair ADD(RSA::GenerateKeyPair(keyLength));
        NslObject::KeyK(RSA::GenerateKeyPair(keyLength));
        typedef NslObject::KeyK NewKeyPair1; 
        NewKeyPair1(RSA::GenerateKeyPair(keyLength));

        //NslObject::
        //Key OtmanK(NewKeyPair1.GetPublicKey());
        std::string message = "othman Alkilany";
        // NslObject::NewKeyPair.GetPrivateKey()
       std::string cypherText = RSA::Encrypt(  message, NewKeyPair1.GetPublicKey());

错误消息是：

  error: expected primary-expression before ‘.’ token

最佳答案 我想你的问题在第二行：

typedef NslObject::KeyK NewKeyPair1; 
NewKeyPair1(RSA::GenerateKeyPair(keyLength));

解析typedef你基本上写了以下内容：

NslObject::KeyK(RSA::GenerateKeyPair(keyLength));

所以你可以清楚地看到你错过了这一行的变量名.

要解决此问题,请为变量/对象命名：

NewKeyPair1 somekeypair(RSA::GenerateKeyPair(keyLength));

但是,我猜你还是误用了typedef？您是否尝试将NewKeyPair1命名为？像这样的东西：

NslObject::KeyK NewKeyPair1(RSA::GenerateKeyPair(keyLength));
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