Consider 
#1
sub mychop(\$) {  chop ${shift()} }

[download]
versus 
# 2
sub mychop(\$) {  chop ${$_[0]} }

[download]
As perl v5.8.8, the program dies with mychop version #2, but not with version #1.

${shift()} copies (via shift()) $_[0] into a ref-thingy, which is then dereferenced with $ - a behaviour which I deem correct. I would take a die() with #1 as a bug. At version #2 the die() is ok - the reference $_[0] is wrapped into a reference and dereferenced - still $_[0], thus read-only.

mhm.. really? oh, wait...

--shmem 

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

In reply to Re: foreach funny business by shmem
in thread foreach funny business by krunchky

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