C Program to Illustrate the use of fsetpos()
C
// C program to illustrate the use of fsetpos()#include <stdio.h>int main(){ // File pointer FILE* fp; // Variable to store file position fpos_t position; // Open file in write and read mode fp = fopen("myfile.txt", "w+"); // Get current file position and store it fgetpos(fp, &position); // Write "HelloWorld!" to the file fputs("HelloWorld!", fp); // Set file position back to the stored position fsetpos(fp, &position); // Write "w3wiki" to the file from the restored // position fputs("w3wiki", fp); // setting file pointer position back to the stored // position fsetpos(fp, &position); // storing data stored in file char arr[50]; fgets(arr, 14, fp); // printing output puts(arr); // Close the file fclose(fp); return (0);} |
Output
w3wiki
fsetpos() (Set File Position) in C
The fsetpos() function moves the file position indicator of the given file stream to the specified position. When fsetpos() is executed, the end-of-file indicator is reset. fsetpos() function is a part of <cstdio> header file in C Standard Library.