Re: using 'or' followed by ','

It's the comma operator. In this case, the comma expression is evaluated in a scalar context (dictated by the or), but still each argument is evaluated; that's the intent here (i.e. the ultimate return value of the expression is not used). A more straightforward alternative for that line would be

if ( !DO_SOMETHING ) {
  warn("some warning");
  next;
}
[download]

unless ( DO_SOMETHING ) {
  warn("some warning");
  next;
}
[download]

the lowliest monk

Comment on Re: using 'or' followed by ',' Select or Download Code

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Re^2: using 'or' followed by ',' by davidrw (Prior) on Jul 22, 2005 at 02:13 UTC
yet another alternative using "do" so as to maintain the "reversed" syntax: `do { warn("some warning"); next } unless DO_SOMETHING;` [download]	[reply] [d/l]