Lecture 21: File Input/Output

Activity:

We saw in today's lecture the definition of a file and the C functions associated with manipulating a file. Here's your opportunity to write code that accesses and writes to a file. Given a text file called text, copy this file, double-space it, and write to to a new file called text_double. As always, it's important to follow good design principles by stating the problem, describing the algorithm that you'll use, and then write the C code. Since files are a new concept, you may do all the processing in the main function. Be sure to trace the code, checking for errors and mentally testing your code. (Hint: To double space a file, recall that the '\n' character prints a new line.)

Problem Specification:

The Algorithm:

The C Program: