
</blockquote>
is ignored because SWIG has no idea what type of variable this would be.

<p>
<li>Expressions are allowed provided that all of their components are defined. Otherwise, the constant is ignored.

<li>Certain C declarations involving 'const' are also turned into Perl constants. 

<p>
<li>The constants that appear in a SWIG interface file do not have to appear in any sort
of matching C source file since the creation of a constant does not require linkage
to a stored value (i.e., a value held in a