h0510.c

来自「学习C语言必备的好书」· C语言 代码 · 共 22 行

#include <stdio.h>

int main(void)
{
   int streams_closed;

   /* open two streams */
   fopen("DUMMY.ONE", "w");
   fopen("DUMMY.TWO", "w");

   /* close the open streams */
   streams_closed = fcloseall();

   if (streams_closed == EOF)
      /* issue an error message */
      perror("Error");
   else
      /* print result of fcloseall() function */
      printf("%d streams were closed.\n", streams_closed);

   return 0;
}