d
additional initialization code. Only the specific details are
different.</p>

<H3><a name="Scripting_nn5">4.2.2 Variable linking</a></H3>


<p>
Variable linking refers to the problem of mapping a 
C/C++ global variable to a variable in the scripting
language interpreter. For example, suppose you had the following
variable:</p>

<div class="code"><pre>
double Foo = 3.5;
</pre></div>

<p>
It might be nice to access it from a script as follows (shown for Perl):</p>

<div class="targetlang"><pre>
$a = $Foo * 