Re: Stupid mistakes I repeatedly make

my %hash = { };
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I found this used several times in code we'd hired some contractors to do. The infuriating thing was that it actually seems to work... so I ended up looking like a weenie when complaining about the quality of the code.

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Re^2: Stupid mistakes I repeatedly make by tlm (Prior) on Mar 28, 2005 at 02:40 UTC
`my %hash = { };` [download] I found this used several times in code we'd hired some contractors to do. The infuriating thing was that it actually seems to work... You need to start using the `-w` flag more, my friend (that or `use warnings`). If you had, then perl would have warned you: `% perl -we 'my %hash = { }' Reference found where even-sized list expected at -e line 1.` [download] the lowliest monk	[reply] [d/l] [select]
Re^2: Stupid mistakes I repeatedly make by revdiablo (Prior) on Mar 28, 2005 at 00:57 UTC
The infuriating thing was that it actually seems to work Sure, it "works", but it's certainly not right: `$ perl -MData::Dumper -we 'my %hash = {}; print Dumper \%hash' Reference found where even-sized list expected at -e line 1. $VAR1 = { 'HASH(0x814cc20)' => undef };` [download] It generates a warning and adds a useless entry to the hash. I can't imagine that's what the contractors wanted to do. :-)	[reply] [d/l]


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