Just a question on the notation used for the return value for Image::Magick::Read. I understand from merlyn's post that the Read function does not return a result in the error variable ($!).

Let's just pretend that it did return a value (even though it doesn't). Even then, wouldn't the line

$image->Read(file=>\*IMAGE) || die "Unable to read image: $!";

be better written as

$image->Read(file=>\*IMAGE) or die "Unable to read image: $!";

The difference being using or instead of ||. Not that it will do anything in this case, but when checking for return values in $!, is one not always suppose to use the "or" operator rather than "||"? I believe I was once told that using "or" (since it has a higher precedence) is always preferred when dealing with this type of situation. Did I hear wrong or am I right? Or does it depend upon the type of function called?

In reply to Re: Re: Re: Image::Magick resize question by mt2k
in thread Image::Magick resize question by emilford

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