#!/usr/local/bin/perl
use strict;

        foreach my $name ('A', 'B')
        {
        my $res = 'Init' if (0);

                if (defined ($res))
                {
                        print "$name: res = $res\n";
                }
                else
                {
                        print "$name: res is undef\n"
                }

                $res = 'Post';
        }

[download]

Result:
A: res is undef
B: res = Post


As $res is under lexical variable scope, shouldn't it disappear at the bottom of the block
and be recreated by the second pass, producing an identical result?
Bug? Feature? Saving CPU?

perl -v
This is perl, v5.10.1 (*) built for x86_64-linux-thread-multi

Thoughts?
Dave

In reply to Variable Scope by dave741

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