Thread: File not opening issue in VC++ 2008 compiler

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  1. #1
    Registered User
    Join Date
    Dec 2011
    Posts
    5

    File not opening issue in VC++ 2008 compiler

    Hi,

    I am not able to open the file in read mode.Can u please tell me where i went wrong?..

    I guess the value in buffer variable is not working .IF it so please kindly suggest me any solution.


    Code:
    int main(int argc, char* argv[])
    {
      int k=0;
      FILE *fp;
      unsigned char cd[255];
      unsigned long cd1[500];
      char buffer[1024];
      unsigned long sa=80044;
      int j=0,i=0,n=0;
      DIR *dir;
      struct dirent *direntry; //could be a file, or a directory
    
      dir = opendir("C:/Documents and Settings/Administrator/Desktop/vicky");
      if(!dir) {
      printf("Error: directory did not open!\n");
      return 1;
      }
    
      while((direntry=readdir(dir))!=NULL) {
      if(++k < 100)
      {
         printf("%s\n",direntry->d_name);
         sprintf(buffer,"%s",direntry->d_name);
         fp=fopen("buffer","rb");
         sa=sa-44;
         sa=sa/8;
    
      if(fp==NULL)
     {
       printf("file not found!");
     }
     else
          {
           for(j=0;j<(sa);j++)
           {
               for(i=0;i<8;i++)
               {
                   cd[i]=fgetc(fp);//get each character from file 
    
                  // printf("%c",cd[i]);
    
               }
               if(i==8)//if the i is 8 the character then do the following,just read 8 bytes  and then calculate the cd1.
               {
                    sa=sa-8;
                   cd1[j]=(cd[6] * 65536 + cd[5] * 256 + cd[4]);//multiply  the positional weightage and calculate the cd1,which contains the 7  digits decimal value.
    
                   //if((cd1[j]> 0x7FFFFF)&&(cd1[j]<=0xFFFFFF))
    
                     //cd1[j]=cd1[j]- 0xFFFFFF;
                     //cd1[j]=cd1[i] * -1;
    
               }
             printf("completes first 8 bytes read:%d - %d",j,cd1[j]);//print j and cd1[j] value in console window
    
           }
          fclose(fp);//close the file
       }
    
    
      }
      if((strcmp(direntry->d_name, "text.txt"))==0) {
         printf("\nThe %s file has been found\n",direntry->d_name);
    
         k=-99;  //just a flag value to show the file was found
         break;
       }
    
      }
      if(k!=-99)
      printf("\nThe test.txt file was not found\n");
    
      closedir(dir);
    
      printf("\n");
      getchar();
      return 0;
    
     }
    Last edited by keerth516; 01-17-2012 at 05:17 AM. Reason: changed the code

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