Hello flynn7312,

any hints?

Yes: Tip #4 from the Basic debugging checklist:

Dump arrays, hashes and arbitrarily complex data structures.

But I actually prefer to use Data::Dump:

18:25 >perl 1309_SoPW.pl
2015,02,01
2015,06,05
["2015,02,01"]
["2015,06,05"]
Date::Calc::PP::Delta_Days(): Usage: Date::Calc::Delta_Days($year1,$mo
+nth1,$day1,$year2,$month2,$day2) at 1309_SoPW.pl line 33

18:27 >perl 1309_SoPW.pl

[download]

The output from print "@c\n"; looks like a list of 3 elements, but the corresponding output from Data::Dump shows that it’s actually a single element, the string "2015,02,01".

As FreeBeerReekingMonk says, the problem is the call to join which turns the list into a string. Just remove the join, and the script works as expected.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: Date::Calc question by Athanasius
in thread Date::Calc question by flynn7312

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