这是一个用于查找文件大小的C程序。
算法
Begin function findfileSize() Open a file pointer fp in read only mode. If fp is equals to null then Print “File not found” and return -1. Else count the file size. Close the file. Put the file pointer at the beginning of the file Declare a integer variable result and initialize it with the output of the ftell() function. Close file pointer fp. Return result.End
登录后复制
Example
#include int findfileSize(char f_n[]) { FILE* fp = fopen(f_n, "r"); // opening a file in read mode if (fp == NULL) // checking whether the file exists or not { printf("File Not Found!"); return -1; } fseek(fp, 0L, SEEK_END); int res = ftell(fp); //counting the size of the file fclose(fp); //closing the file return res;}int main() { char f_n[] = { "b.txt" }; //file name is “b.txt” whose size is to be determined int result = findfileSize(f_n); if (result != -1) printf("Size of the file is %ld bytes ", result); //printing the file size return 0;}
登录后复制
输出
Size of the file is 2649 bytes
登录后复制
以上就是C程序以查找文件大小的详细内容，更多请关注【创想鸟】其它相关文章！
版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容， 请发送邮件至253000106@qq.com举报，一经查实，本站将立刻删除。
发布者：PHP中文网，转转请注明出处：https://www.chuangxiangniao.com/p/2587833.html
