UPDATE: Bug fix is uploaded. See below

If anyone has experience with the Sort::Key::Radix library, I would appreciate your input to see if I'm doing something blatantly wrong or if there's a bug in one of the methods I'm using.

I have an array of (uniform-length) hexadecmial strings:

@hexStr = ("339E84CBCF3C7", "2739E84CBCF3C", ...);

[download]

I would like to sort them and return a list of the sorted *indices* rather than just a list of the sorted hex strings. I used the keysort method from the author's non-Radix-based sorting library (Sort::Key::keysort) to successfully sort them with:

my @sortedIdx = keysort { $hexStr[$_] } (0..$#hexStr);

[download]

I would prefer to sort with Sort::Key::Radix method because it is *MUCH* faster (when using the working "ssort" method on strings directly) than other sort methods I've used and it seemed rather straight-forward:

my @sortedIdx = skeysort { $hexStr[$_] } (0..$#hexStr);  # line 58

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But I get a bunch of errors:

Argument "273D09979E78F" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Use of uninitialized value in subroutine entry at sortHexIndices.pl li
+ne 58.
Argument "339E84CBCF3C7" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "39CF4265E79E3" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "1CE7A132F3CF1" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "0E73D09979E78" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "2739E84CBCF3C" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "339CF4265E79E" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Use of uninitialized value in subroutine entry at sortHexIndices.pl li
+ne 58.
Argument "39CE7A132F3CF" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "3CE73D09979E7" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "1E739E84CBCF3" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "0F39CF4265E79" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "279CE7A132F3C" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Use of uninitialized value in subroutine entry at sortHexIndices.pl li
+ne 58.
Argument "33CE73D09979E" isn't numeric in array element at sortHexIndi
+ces.pl line 58.
Argument "39E739E84CBCF" isn't numeric in array element at sortHexIndi
+ces.pl line 58.

[download]

I thought Sort::Key::Radix::skeysort would be appropriate for sorting strings, hence the "s". Am I doing something wrong or does this appear to be a bug?

Thanks!

In reply to Sort::Key::Radix::skeysort bug or user error? by traceyfreitas

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