I disagree that my loops aren't equivalent. It is common practice in C to write loops of the form 
for( $i = 0; $i <= $foo; $i++ ) {
  last if bar( $foo );
}
if( $i > $foo ) {
  # Condition never met!
}

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Essentially, what I would like to do is distinguish between bar(..) being true for the last element in my last, and never being true at all. In "my perfect little world", I would like foreach to unset its iterator variable if and only if it loops through the entire list without encountering last.

So, in my example above, if bar( $foo ) is the first to be true, I want $i == $foo; if bar(..) was never true, it'd be nice to have $i be undef.

In addition, if bar(..) has side effects, then our code is not equivalent.

Edit: Also, I prefer a foreach-style loop because all I'm doing is iterating -- precisely the designated purpose of foreach. Otherwise, if I have a long variable name, I would have to type for( $long_variable_name = 1; $long_variable_name <= 5; $long_variable_name ++ ) versus for $long_variable_name ( 1 .. 5 ). I'm pretty sure I'm not the only one who has made copy-paste errors like for( $j = 0; $j <= 5; $i++ ).

In reply to Re^3: Last undefines a for loop's itererator? by kaif
in thread Last undefines a for loop's itererator? by BUU

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