Get the size of a file in C language sample sharing _c language

Check it out. It is easy to realize the function of file operation function of the same C language. The functions that are used in the functions that you implement are only Fseek and Ftell. Their descriptions are as follows:

Fseek

Grammar:

#include <stdio.h> int fseek (FILE *stream, long offset, int origin);

The function fseek () sets the location data for the given stream. The origin value should be one of the following values (defined in stdio.h):

Name Description
Seek_set start the search from the beginning of the file
Seek_cur start Search from current location
Seek_end start the search at the end of the file
Fseek () returns 0 on success, not 0 on failure. You can use Fseek () to move more than one file, but not before you start. Use Fseek () to clear the EOF tag associated with the stream.

Ftell

Grammar:

#include <stdio.h> long Ftell (FILE *stream);

The code reads as follows: the Ftell () function returns the current file location of the stream (stream), and returns 1 if an error occurs.

#include <sys/stat.h>  
#include <unistd.h>  
#include <stdio.h> 
  /* Function name: getfilesize (char * strFileName) 
  Function: Gets the size parameter of the specified file 
  : 
    strfilename (char *): filename 
  return value: Size 
    (int): File sizes *
/int GetFileSize (char * strFileName)
{
  FILE * fp = fopen (strFileName, "R");
  Fseek (FP, 0L, seek_end);
  int size = Ftell (FP);
  Fclose (FP);
  return size;
}
/* 
  function Name: Getfilesizesystemcall (char * strfilename)  
  feature: Gets the size parameter of the specified file: 
    strFileName (char *): File name 
  return value: Size 
    (int): File size 
 *
/int Getfilesizesystemcall (char * strfilename)
{
  struct stat temp;
  Stat (strFileName, &temp);
  return temp.st_size;
}
int main ()
{
  printf ("size =%d/n", GetFileSize ("GetFileSize.cpp"));
  printf ("size =%d/n", Getfilesizesystemcall ("GetFileSize.cpp"));
  return 0;
}