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<b>Data Structures and Algorithms
with Object-Oriented Design Patterns in C++</b><br>
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<H2><A NAME="SECTION005150000000000000000">Array Member Functions</A></H2>
<P>
Program <A HREF="page85.html#progarray5c" tppabs="http://dictator.uwaterloo.ca/Bruno.Preiss/books/opus4/html/page85.html#progarray5c"><IMG ALIGN=BOTTOM ALT="gif" SRC="cross_ref_motif.gif" tppabs="http://dictator.uwaterloo.ca/Bruno.Preiss/books/opus4/icons/cross_ref_motif.gif"></A> defines three <tt>Array<T></tt>
class member functions.
The three functions <tt>Data</tt>, <tt>Base</tt> and <tt>Length</tt> provide a means
for the user to <em>inspect</em> the contents of the <tt>Array<T></tt> object.
<P>
<P><A NAME="2876"> </A><A NAME="progarray5c"> </A> <IMG WIDTH=575 HEIGHT=220 ALIGN=BOTTOM ALT="program2756" SRC="img605.gif" tppabs="http://dictator.uwaterloo.ca/Bruno.Preiss/books/opus4/html/img605.gif" ><BR>
<STRONG>Program:</STRONG> <tt>Array<T></tt> Class Accessor Function Definitions<BR>
<P>
<P>
The functions <tt>Data</tt>, <tt>Base</tt> and <tt>Length</tt>,
are <tt>const</tt> member functions<A NAME=2772> </A>.
As such, they provide <em>read-only access</em><A NAME=2774> </A>
to the contents of the <tt>Array<T></tt> object.
Such functions are sometimes called
<em>member variable accessors</em><A NAME=2777> </A><A NAME=2778> </A>.
Clearly, the running times of each of these functions is a constant.
I.e., <I>T</I>(<I>n</I>)=<I>O</I>(1).
<P>
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