#------------------------------------------- # Greater Than ($a > $b) #------------------------------------------- sub cmp_gt { my ($a, $b) = @_; return 1 if !cmp_eq($a,$b) && $a > $b; return 0; } #------------------------------------------- # Less Than ($a < $b) #------------------------------------------- sub cmp_lt { my ($a, $b) = @_; return 1 if !cmp_eq($a,$b) && $a < $b; return 0; } #------------------------------------------- # Equal To ($a == $b) #------------------------------------------- sub cmp_eq { my ($a, $b) = @_; return 1 if $a == $b; # Short circuit if rounding is not a problem # One-Thousandth of 1 percent of bigger value magnitude. (10^-5) my ($ma,$mb) = (abs($a),abs($b)); my $piddly = 0.00001 * ($ma > $mb ? $ma : $mb); return 1 if abs($a-$b) <= $piddly; return 0; } #------------------------------------------- # Greater Than or Equal To ($a >= $b) #------------------------------------------- sub cmp_gteq { my ($a, $b) = @_; return cmp_gt($a,$b) || cmp_eq($a,$b); } #------------------------------------------- # Less Than or Equal To ($a <= $b) #------------------------------------------- sub cmp_lteq { my ($a, $b) = @_; return cmp_lt($a,$b) || cmp_eq($a,$b); }