--- perl-current/t/op/sort.t Tue Jul 13 10:29:38 2004 +++ perl-current-new/t/op/sort.t Wed Jul 21 17:04:53 2004 @@ -22,7 +22,7 @@ my $upperfirst = 'A' lt 'a'; # Beware: in future this may become hairier because of possible -# collation complications: qw(A a B c) can be sorted at least as +# collation complications: qw(A a B b) can be sorted at least as # any of the following # # A a B b @@ -577,6 +577,15 @@ @input = sort {$b <=> $a} @input; ok "@input", "G H I D E F A B C", 'stable $b <=> $a in place sort'; +# test that optimized {$b cmp $a} and {$b <=> $a} remain stable +# (new in 5.9) without overloading +{ no warnings; +@b = sort { $b <=> $a } @input = qw/5first 6first 5second 6second/; +ok "@b" , "6first 6second 5first 5second", "optimized {$b <=> $a} without overloading" ; +@input = sort {$b <=> $a} @input; +ok "@input" , "6first 6second 5first 5second","inline optimized {$b <=> $a} without overloading" ; +}; + # These two are actually doing string cmp on 0 1 and 2 @input = &generate1; @output = reverse sort @input;Thread Previous | Thread Next