CITS2002 Systems Programming  
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Reading and writing files of binary data

To date, our use of files has dealt exclusively with lines of text, using fgets() and fputs() to perform our I/O.

This has provided a good introduction to file input/output (I/O) as textual data is easy to "see", and printing it to the screen helps us to verify our functions:

  • the standard fgets function manages the differing lengths of input lines by reading until the '\n' or '\r' character is found,

  • fgets terminates input lines by appending a null-byte to them, 'turning' them into C strings, and

  • the null-byte is significant when later managing (copying, printing, ...) strings.

 


CITS2002 Systems Programming, Lecture 7, p12, 12th August 2024.