A common task for a program is to read data from a file. To read from a text file in C, you will need to open a file stream using the fopen() function. Once a file stream has been opened, you can then ...

To ensure data integrity, it's wise to frequently calculate file checksums. The C program in Listing 1 calculates the checksum of a file using a 16-bit CRC (cyclic redundancy check). The program ...