From "perldoc constant":
Constants defined using this module cannot be
interpolated into strings like variables.
But:
use constant foo => 7;
print "foo: @{[foo]}\n";
Whee!
This was in "Programming Perl":
Since these constants don't have a $ on the front, you can't interpolate them directly into double-quotish strings, although you may do so indirectly
: print "The value of PI is @{[ PI ]}.\n";
I use 5.8.7 and that statement isn't in my perldoc for constant.
