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This chapter presents the source code for a very simple C program and uses it to explain a few features of the language. If you already know the basic points of C presented in this chapter, you can skim it or skip it.
We present examples of C source code (other than comments) using a fixed-width typeface, since that’s the way they look when you edit them in an editor such as GNU Emacs.
| • Recursive Fibonacci | Writing a simple function recursively. | |
| • Stack | Each function call uses space in the stack. | |
| • Iterative Fibonacci | Writing the same function iteratively. |