I have a subroutine as follows 

##################
sub sample {
##################
        my $t           = shift;
        my ($p, @r, $v, $rt);
     $t->get_handles(params=>\$p, rtrs=>\@r, vars=>\$v, t=>\$rt);

        my @subs;
        foreach my $rh (@r) {
         <some command at execution>
}

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Here, @r takes values which is defined in a file, which is pre-defined, @r always inputs from $r[0]..$r5 .Users can't modify this file or this sub sample. They can only access from their own sub/file

I am calling this sub via another file, but i need @r to process only $r[0]. Is there a way to statically set @r to a single value say, $r[0] ,temporarily from the calling file/sub

In reply to setting values inside subroutine by Anonymous Monk

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