2009/11/26 Marco Pacini <i...@marcopacini.org>: > Hi All, > > I'm studying Perl since one week on "Learning Perl" written by L. Wall and in > the paragraph "Assignment Operators" i don't understand why this: > > ($temp = $global) += $constant; > > is equivalent of: > > $tmp = $global + $constant; > > Instead, before i read it, i thought it was equivalent of: > > $temp = $global; > $temp = $temp + $constant;
Let's relabel the first value of $temp as a new variable, $temp2: my $temp2 = $global; $temp = $temp2 + $constant; Notice that $temp2 has just been given the value of $global, so this second statement is the same as: $temp = $global + $constant; In other words, you're both right, because your version is equivalent to $temp = $global + $constant. Philip -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
