Hi Magne,
On Tuesday 13 Apr 2010 06:35:51 Magne Sandøy wrote:
> Hi.
>
> I'm new to perl, and I stumbled across a strange behavior in my for loop.
> In the following code, the second for loop actually counts way passed
> what I expected, and actually stops at "yz" and not "z" as expected.
> As shown by the third for loop, incrementing the letters, seems to give
> me the desired output in each loop.
> What is going on here?
>
>
> #!/usr/bin/perl
> use warnings;
> use strict;
>
> my $letter = "u";
>
> for ("u".."z"){
> print " $_ ";
> }
>
> print "\n\n";
>
> for ($_="u"; $_ le "z"; $_++){
> print " $_ ";
> }
"le" is the string equivalent of "<=" (less than or equal). You probably want
"lt" instead here. A program using it yields the following:
{{
u v w x y z
u v w x y
u v w x y z aa
}}
Regards,
Shlomi Fish
>
> print "\n\n";
>
> for(1..7){
> print " $letter ";
> $letter++;
> }
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