#include stdio.hint main () {int ret;char oldname[] = file.txt;char newname[] = newfile.txt;

编程学习网为您整理以下代码实例，主要实现：C语言库rename()函数，希望可以帮到各位朋友。

#include <stdio.h>

int main () {
   int ret;
   char oldname[] = "file.txt";
   char newname[] = "newfile.txt";

   ret = rename(oldname, newname);

   if(ret == 0) {
      printf("file renamed successfully");
   } else {
      printf("Error: unable to rename the file");
   }

   return(0);
}