What is the purpose of using undef as the iteration count for cmpthese( $1000, ... );?

Is that what causes the warnings? 

Use of uninitialized value in numeric gt (>) at c:/Perl/lib/Benchmark.
+pm line 831.
Use of uninitialized value in numeric gt (>) at c:/Perl/lib/Benchmark.
+pm line 838.
Use of uninitialized value in numeric eq (==) at c:/Perl/lib/Benchmark
+.pm line 776.
Use of uninitialized value in numeric gt (>) at c:/Perl/lib/Benchmark.
+pm line 840.
Use of uninitialized value in numeric gt (>) at c:/Perl/lib/Benchmark.
+pm line 791.
Use of uninitialized value in numeric eq (==) at c:/Perl/lib/Benchmark
+.pm line 776.
Use of uninitialized value in numeric gt (>) at c:/Perl/lib/Benchmark.
+pm line 791.
Use of uninitialized value in numeric eq (==) at c:/Perl/lib/Benchmark
+.pm line 776.
Use of uninitialized value in numeric gt (>) at c:/Perl/lib/Benchmark.
+pm line 791.
Use of uninitialized value in numeric eq (==) at c:/Perl/lib/Benchmark
+.pm line 776.

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In reply to Re: Re: Re: Find unique elements in an array by BrowserUk
in thread Find unique elements in an array by jcpunk

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