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fp = fopen("/tmp/test.txt", "r");

fscanf(fp, "%s", buff);
printf("1 : %s\n", buff );

fgets(buff, 255, (FILE*)fp);

printf("2: %s\n", buff );

fgets(buff, 255, (FILE*)fp);
printf("3: %s\n", buff );

fclose(fp);

}

When the above code is compiled and executed, it reads the file created in the previous
section and produces the following result:

1 : This
2: is testing for fprintf...

3: This is testing for fputs...

Let's see a little more in detail about what happened here. First, fscanf() reads just This
because after that, it encountered a space, second call is for fgets() which reads the
remaining line till it encountered end of line. Finally, the last call fgets() reads the second line
completely.

Binary I/O Functions
size_t fread(void *ptr, size_t size_of_elements,

size_t number_of_elements, FILE *a_file);
size_t fwrite(const void *ptr, size_t size_of_elements,

size_t number_of_elements, FILE *a_file);

There are two functions that can be used for binary input and output:

Both of these functions should be used to read or write blocks of memories - usually
arrays or structures.

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