As I said, I was trying this on the Unix machine here (Irix 5.2, Perl 5.003 with EMBED). Anyway, I got a few surprises. Here they are: Program #1: #!/usr/local/bin/perl # # 5/28/96 Mark Manning Original Program # require "generic.pl"; do 'vars.pl'; do 'showFiles.pl'; @array1 = (); @array2 = (); for( $i=0; $i<20; $i++ ){ $array1[$i] = $i; $array2[$i] = $i; } for( $i=0; $i<20; $i++ ){ $array1[$i] = &myFunc( $array1[$i] ); } foreach( @array2 ){ $_ = &myFunc( $_ ); } for( $i=0; $i<20; $i++ ){ print "Array1[$i] = $array1[$i], Array2[$i] = $array2[$i]\n"; } exit( 0 ); sub myFunc { local( $value ) = @_; return( $value+1 ); } This works fine. Program #2: #!/usr/local/bin/perl # # 5/28/96 Mark Manning Original Program # require "generic.pl"; do 'vars.pl'; do 'showFiles.pl'; @array1 = (); @array2 = (); for( $i=0; $i<20; $i++ ){ $array1[$i] = $i; $array2[$i] = $i; } for( $i=0; $i<20; $i++ ){ $array1[$i] = &myFunc( $array1[$i] ); } foreach( @array2 ){ &myFunc( $_ ); } for( $i=0; $i<20; $i++ ){ print "Array1[$i] = $array1[$i], Array2[$i] = $array2[$i]\n"; } exit( 0 ); sub myFunc { local( $value ) = @_; return( $value+1 ); } This does not work (the "$_ =" was removed). Although I thought the "$_ =" was implied on functions which returned a value and were not assigned an explicit variable to store the information into. Obviously not. However, the shocker I had was this: Program #3: #!/usr/local/bin/perl # # 5/28/96 Mark Manning Original Program # require "generic.pl"; do 'vars.pl'; do 'showFiles.pl'; @array1 = (); @array2 = (); for( $i=0; $i<20; $i++ ){ $array1[$i] = $i; $array2[$i] = $i; } for( $i=0; $i<20; $i++ ){ $array1[$i] = &myFunc( $array1[$i] ); } foreach( @array2 ){ $_ = &myFunc( $_ ); } for( $i=0; $i<20; $i++ ){ print "Array1[$i] = $array1[$i], Array2[$i] = $array2[$i]\n"; } exit( 0 ); sub myFunc { my $value = @_; return( $value+1 ); } I thought that the "my" command was the same as the "local" command. Obviously not. The "my" version just returns the number "2" for everything. Anyone want to comment on why this is so? Thanks! :-) ***** Want to unsubscribe from this list? ***** Send mail with body "unsubscribe" to mac-perl-request@iis.ee.ethz.ch