comment on

Dear Monks,

One way of making scalar read-only is to assign to glob the reference to constant scalar, e.g.

    *PI = \3.14;
[download]

However, I have a problem with constructing read-only strings. If

    *NAME = \"My name";
[download]

is marked read-only,

    *NAME2 = \"My $name";
[download]

isn't.

Bigger snippet:

    $bar = 'bar';

    # This prints 'bar'
    *foo = \"The $bar is here";
    $foo = "bar";
    print "$foo\n";

    # This dies
    *foo = \"The bar is here";
    $foo = "bar2";    # error here
    print "$foo\n";
[download]

My question is: how to make "non-constant" strings (e.g. variables) become constant ones? Neither concatenation with '.', nor variable embedding in string works for me.

In reply to Constant string reference by przemo

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