| Write squares to file | |
| 1 1 | |
| 2 4 | |
| 3 9 | |
| 4 16 | |
| Read data as numbers | |
| Read 1^2=1 | |
| Read 2^2=4 | |
| Read 3^2=9 | |
| Read 4^2=16 | |
| Read data as strings, use EOF status | |
| Line 1 string '1' Status = 0 | |
| Line 2 string '1' Status = 0 | |
| Line 3 string '2' Status = 0 | |
| Line 4 string '4' Status = 0 | |
| Line 5 string '3' Status = 0 | |
| Line 6 string '9' Status = 0 | |
| Line 7 string '4' Status = 0 | |
| Line 8 string '16' Status = 0 | |
| 9 lines read | |
| Status = -1 | |
| Read Character by Character use EOF status | |
| Character 1 : 49 | |
| Character 2 : 10 | |
| Character 3 : 49 | |
| Character 4 : 10 | |
| Character 5 : 50 | |
| Character 6 : 10 | |
| Character 7 : 52 | |
| Character 8 : 10 | |
| Character 9 : 51 | |
| Character 10 : 10 | |
| Character 11 : 57 | |
| Character 12 : 10 | |
| Character 13 : 52 | |
| Character 14 : 10 | |
| Character 15 : 49 | |
| Character 16 : 54 | |
| Character 17 : 10 | |
| Character 18 : -1 | |
| 18 characters read | |
| Status = -1 | |