$\newcommand{\N}{\mathbb N} \newcommand{\Z}{\mathbb Z} \newcommand{\Q}{\mathbb Q} \newcommand{\R}{\mathbb R} \newcommand{\lt}{<} \newcommand{\gt}{>} \newcommand{\amp}{&} \definecolor{fillinmathshade}{gray}{0.9} \newcommand{\fillinmath}[1]{\mathchoice{\colorbox{fillinmathshade}{$\displaystyle \phantom{\,#1\,}$}}{\colorbox{fillinmathshade}{$\textstyle \phantom{\,#1\,}$}}{\colorbox{fillinmathshade}{$\scriptstyle \phantom{\,#1\,}$}}{\colorbox{fillinmathshade}{$\scriptscriptstyle\phantom{\,#1\,}$}}} $

Section 19.17 Summary

In this chapter we studied pointers (addresses of variables) and how they can help with writing better code. We covered:

The address of a variable
Dereferencing a pointer
Arrays and pointers
Passing arrays to functions
Arrays don’t know their own sizes
Using pointer arithmetic to access array elements

Pointers make it possible to break up a large problem into many small sub-problems. Summary of designing and testing methods discussed in this chapter:

Top-Down Design is used to break down larger problems into manageable pieces.
Bottom-Up Testing is used to test the individual pieces.
Top-Down Testing is used to check the flow of your program.

Prev Top Next