Header File 

dos.h  

Category 

Input/output Routines 

Prototype 

int _unlink(const char *filename); 

int _wunlink(const wchar_t *filename); 

Description 

Deletes a file. 

_unlink deletes a file specified by filename. Any drive, path, and file name can be used as a filename. Wildcards are not allowed. 

Read-only files cannot be deleted by this call. To remove read-only files, first use chmod or _rtl_chmod to change the read-only attribute.

Return Value 

On success, _unlink returns 0.  

On error, it returns -1 and sets the global variable errno to one of the following values:

Example

#include <stdio.h>
#include <io.h>
int main(void)
{
   FILE *fp = fopen("junk.jnk","w");
   int status;
   fprintf(fp,"junk");
   status = access("junk.jnk",0);
   if (status == 0)
      printf("File exists\n");
   else
      printf("File doesn't exist\n");
   fclose(fp);
   unlink("junk.jnk");
   status = access("junk.jnk",0);
   if (status == 0)
      printf("File exists\n");
   else
      printf("File doesn't exist\n");
   return 0;
}

Portability