I have been reading Modern Perl and in several instances they use is and isnt. Are these functions available in Perl? I looked at http://perldoc.perl.org/index-functions.html and couldn't find them. Two usage examples are shown below.
isnt( $i, 'pig', '$i overwritten with a number' ); is( $nums[9], 100, '10 * 10 is 100' ); Thank you; Sherman
