File_Graper

[St0rM-MaN]

hy all i am facing a problem in this code

/*file.c */

#include "file.h"

#include<string.h>

char  *get_file_path(char *buffer)

{

     int count;

     char *path;

     for(count=0;buffer[count]!='\0';count++)

     {

     if(buffer[count]=='/')

     {

     path=&buffer[count];

     break;

     }

     }

     for(count=0;path[count]!='\0';count++)

     {

     switch((*buffer+count))

     {

     case ' ':

          path[count]='\0';

          break;

          }

          }

          

     return path;

     }

     char *get_file_name(char *buffer)

     {

          char *name;

          name=strrchr(buffer,'/');

          return name;

          }

/*file.h*/
#if defined(file)


#else

#define file

char *get_file_path(char *buffer);

char *get_file_name(char *buffer);

#endif

/* source code*/

#include<stdio.h>

#include<string.h>

#include "file.h"

#define BUF 250

main()

{

FILE *fp,*lp,*cp,*pp;

char word[10],copy[BUF],buffer[BUF],*path,*name;

printf("\nHy I am   What We Gonna Do Is Getting The Files That You Will Enter It's 
Extnasion:");

fgets(word,10,stdin);

fp=fopen("c:\hh.txt","rb");


lp=fopen("log.txt","rb");

if((fp==NULL)&&(lp==NULL))

fprinf(stderr,"\nError In Opining File IN File &#37;s Line %d",__FILE__,__LINE__);

while((fgets(buffer,BUF,fp))!=NULL)

{

 path=get_file_path(buffer);

 name=get_file_name(path);

 if(((pp=fopen(path,"rb"))!=NULL)&&(cp=fopen(name,"ab"))!=NULL)

 {

 while((fgets(copy,BUF,pp))!=NULL)

 {

 fputs(copy,cp);

}

fclose(pp);

fclose(cp);

}









}

fprintf(stderr,"\nComplet");









fclose(fp);



fclose(lp);



return (0);







}

i am using dev-cpp compiler

and i can't compile it the error is

[Linker error] undefined reference to `get_file_path'
[Linker error] undefined reference to `get_file_name'
ld returned 1 exit status

what is the problem now ?


help

[itsme86]

Do you have file.c included as a file in your project?

[St0rM-MaN]

thats a sure thing man

[whiteflags]

Here's why it's bad to name your macros carelessly.

/*file.h*/
#if defined(file)

#else
  #define file
  char *get_file_path(char *buffer);
  char *get_file_name(char *buffer);
#endif

The logic here is fine, however, when you define file the preprocessor eventually goes through the code, preparing it for compilation and runs into an unforseen problem: You've also used the phrase "file" as part of a function name or two, and such things are not exempt from #defined replacements. I'm positive the compiler sees something like this:

char *get__path(char *buffer);
char *get__name(char *buffer);

get_file_path and get_file_name still don't have a prototype, so the linker pukes.

I'd recommend a macro far more unique for this purpose.

[itsme86]

Something like FILE_H__ is something I commonly see.

[St0rM-MaN]

thanks all
when i removed

 #include<stdlib.h>

from file.c
it works
but
the program isn't work
why?
1-i didn't test functions
2-i assumed that the program will work as soon as i write functions
3-i didn't get the macro stuff
do you mean like that for example

#define func(value) func{//code goes here}

??? do you mean that?
i am not on my machine to tray it now
but i will tray it as soon as i come back
really thanks to all you