How do I format binary files in C?

How do I format binary files in C?

To format binary files in C, you can use functions like fopen(), fwrite(), and fread(). Would you like an example?

Yes, please provide an example of writing to a binary file.

Sure! Here's a simple example:

#include <stdio.h>

int main() {
    FILE *file = fopen("data.bin", "wb");
    int num = 12345;
    fwrite(&num, sizeof(num), 1, file);
    fclose(file);
    return 0;
}

This code writes an integer to a binary file.

How do I read the binary file I just created?

You can read the binary file using the fread() function. Here's an example:

#include <stdio.h>

int main() {
    FILE *file = fopen("data.bin", "rb");
    int num;
    fread(&num, sizeof(num), 1, file);
    fclose(file);
    printf("Read number: %d\n", num);
    return 0;
}

This will read the integer back from the file.