fileno.c

来自「本代码是《C／C++程序员实用大全》的配套代码。网络转载」· C语言 代码 · 共 23 行

#include <stdio.h>
#include <io.h>

void main(int argc, char *argv[])
 {
   FILE *stream;

   int handle;

   long file_length;

   if (stream = fopen(argv[1], "r"))
     {
        // Some statements
        handle = fileno(stream);
        file_length = filelength(handle);
        printf("The file length is %ld\n", file_length);
        fclose(stream);
     }
   else
     printf("Error opening %s\n", argv[1]);
 }