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package Set::Product; |
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use strict; |
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use warnings; |
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use Exporter qw(import); |
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our $VERSION = '0.03'; |
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$VERSION = eval $VERSION; |
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our @EXPORT_OK = qw(product); |
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my $want_pp = $ENV{SET_PRODUCT_PP} || $ENV{PURE_PERL}; |
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if ($want_pp or ! eval { require Set::Product::XS; 1 }) { |
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require Set::Product::PP; |
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Set::Product::PP->import(@EXPORT_OK); |
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} |
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else { |
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Set::Product::XS->import(@EXPORT_OK); |
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} |
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1; |
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__END__ |