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电梯直达

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发表于 2009-05-06 10:55 |只看该作者 |倒序浏览

以下代码不使用静态方法，并合成一个文件，编译无误并可以运行，但是将程序分开后，就会报错，请各位不吝赐教，谢谢！

文件r.h
代码：

#ifndef R_H_
#define R_H_

enum logtype{operation,error,excep};
int charNum=0,xmlfilefd;
class createXML
{
private:

static char xmlbuf[];
public:
static void createXMLHead();
static int charNumber();
static void createXMLNode(enum logtype lt,char messagedescription[200]);
static void closeXMLFile();
};

#endif /* R_H_ */

文件d.h
代码：
#ifndef D_H_
#define D_H_

class createNodeMessage
{
public:
static char operationmessage[200];
static char errormessage[200];
static char exceptionmessage[200];
  static void callcreateXMLNode();
};

#endif /* D_H_ */
主函数：

#include "r.h"
#include "d.h"
#include <sys/fcntl.h>
#include <sys/unistd.h>
#include <sys/file.h>
#include <stdlib.h>
#include <iostream>
#include <fstream>
#include <cstdlib>
using namespace std;

struct flock* file_lock(short type, short whence)
{
      static struct flock ret ;
      ret.l_type = type ;
      ret.l_start = 0 ;
      ret.l_whence = whence ;
      ret.l_len = 0 ;
      ret.l_pid = getpid() ;
      return &ret ;
}
void createXML::createXMLHead()
{
strcpy(createXML:

mlbuf,"<?xml version=\"1.0\"?>\n<ptg-log>\n</ptg-log>"

;

xmlfilefd = open("/root/xmltest/ptg_log.xml",O_WRONLY|O_CREAT,0644);
if(xmlfilefd<0)
{
perror("open xml file failed!"

;
} else {
cout<<"xml头文件创建成功！"<<endl;
write(xmlfilefd,createXML:

mlbuf,strlen(createXML:

mlbuf));
close(xmlfilefd);
}
}
int createXML::charNumber()
{
//以流的方式打开文件，统计文件中字符的个数
FILE *pFile = fopen( "/root/xmltest/ptg_log.xml", "r" );
         char ch;
      while ( (ch = getc( pFile )) != EOF )
         {
charNum++ ;
         }
//计算结束
fclose( pFile );
xmlfilefd = open("/root/xmltest/ptg_log.xml",O_WRONLY|O_CREAT,0644);
return charNum;
}
void createXML::createXMLNode(enum logtype lt,char messagedescription[200])
{

cout<<"createXML begin charNum value is : "<<charNum<<endl;
//取得当前时间
   time_t t = time(0);
   char tmp[30];
   strftime( tmp, sizeof(tmp), "%Y-%m-%d %X",localtime(&t) );
   string ss=tmp;
   string s;
   s= ss.substr(0,16);

//开始创建xml节点信息
   char node[220];
   char nodeName[20];
   char nodeEnd[20];
   strcpy(nodeEnd,">\n</ptg-log>"

;
   switch(lt)
   {
   case 0:
   strcpy(nodeName,"operation"

;
   break;
   case 1:
   strcpy(nodeName,"error"

;
   break;
   case 2:
   strcpy(nodeName,"excep"

;
   break;
   default:
   cout<<"please choose a right node name"<<endl;
   break;
   }
//拼接成一个xml节点
   strcpy(node,"<"

;
strcat(node,nodeName);
strcat(node," time=\""

;
strcat(node,s.c_str());
strcat(node,"\">\n"

;
strcat(node,messagedescription);
strcat(node,"\n</"

;
   strcat(node,nodeName);
   //strcat(node,">");
   strcat(node,nodeEnd);
//给文件加上操作锁
fcntl(xmlfilefd, F_SETLKW, file_lock(F_WRLCK, SEEK_SET));

int nodelength=strlen(node);
charNum = charNum-11;
lseek(xmlfilefd,charNum,SEEK_SET);
write(xmlfilefd,node,strlen(node));

//对文件解锁操作
fcntl(xmlfilefd, F_SETLKW,file_lock(F_UNLCK,SEEK_END));

charNum = charNum+nodelength;
cout<<"node is :  "<<node<<endl;
cout<<"createXMLNode charNum is : "<<charNum<<"  strlen(node) length is  : "<<nodelength<<endl;
}

void createXML::closeXMLFile()
{
cout<<"end this file charNum value is  : "<<charNum<<endl;
close(xmlfilefd);
}
void createNodeMessage::callcreateXMLNode()
{
enum logtype log;
for(int i=0;i<3;i++)
{
switch(i%3)
{
case 0:
log=operation;
strcpy(createNodeMessage:

perationmessage,"this is an operation message !");
createXML::createXMLNode(log,createNodeMessage:

perationmessage);
break;
case 1:
log=error;
strcpy(createNodeMessage::errormessage,"this is an errormessage message !");
createXML::createXMLNode(log,createNodeMessage::errormessage);
break;
case 2:
log=excep;
strcpy(createNodeMessage::exceptionmessage,"this is an exceptionmessage message !");
createXML::createXMLNode(log,createNodeMessage::exceptionmessage);
break;
default:
cout<<"no input param"<<endl;
break;
}
}
}
int main()
{
createXML::createXMLHead();
createXML::charNumber();
createNodeMessage::callcreateXMLNode();
createXML::closeXMLFile();

return 0;
}

程序报编译后的错误提示：

Description Resource Path Location Type
more undefined references to `createNodeMessage::errormessage' follow main.cpp createStringXML 161 C/C++ Problem
more undefined references to `createNodeMessage::exceptionmessage' follow main.cpp createStringXML 166 C/C++ Problem
more undefined references to `createNodeMessage:

perationmessage' follow main.cpp createStringXML 156 C/C++ Problem
undefined reference to `createNodeMessage::errormessage' main.cpp createStringXML 161 C/C++ Problem
undefined reference to `createNodeMessage::exceptionmessage' main.cpp createStringXML 166 C/C++ Problem
undefined reference to `createNodeMessage:

perationmessage' main.cpp createStringXML 156 C/C++ Problem
undefined reference to `createXML:

mlbuf' main.cpp createStringXML 38 C/C++ Problem
undefined reference to `createXML:

mlbuf' main.cpp createStringXML 46 C/C++ Problem

提示说的是有些重复定义了，但是确实是没有重复定义的／