reset the reading position to beginning in c

To reset the reading position to the beginning in C, you can use the fseek function from the stdio.h library. Here are the steps to do this:

1. Include the necessary header file: c #include <stdio.h>

2. Open the file in read mode: c FILE *file = fopen("filename.txt", "r");

3. Check if the file was opened successfully: c if (file == NULL) { // handle file opening error }

4. Reset the reading position to the beginning: c fseek(file, 0, SEEK_SET);

The fseek function takes three arguments: - The file pointer file that represents the file you want to manipulate. - The offset 0, which specifies how many bytes to move the file pointer. In this case, 0 means move it to the beginning of the file. - The SEEK_SET constant, which tells fseek to set the file pointer position relative to the beginning of the file.

1. Close the file when you are done: c fclose(file);

That's it! Following these steps will reset the reading position of the file to the beginning.