OK, I won't actualy recomend this, as its higly magical, and it is not very intuitve what you are doing.(Id hate to maintain code like this....)

I'll also call you globalHash globalHash if you dont mind. You'll understand why...

Anyway, the globalHash is stored in something called a glob. Now a glob is sort of a hash, with the values beeing references to everything that can be called globalHash. So the %globalHash is actually stored as a reference to a hash in the *globalHash glob. (There is also a refernce to a list, in case you define @globalHash. Since you probably haven't that refernce is probably undef in your program) Now, to set %globalHash to a new hash, simply set the glob to an empty hash reference like this:

push %AoH, \%globalHash;
*globalHash={};
[download]

That sets the hash part of the glob to a new, empty hash reference, so that %globalHash is now empty. The good thing is that a glob works a lot like a hash table, so the old hash you had stored there is not gone. There are still references to it in your AoH list. Its just not possible to get at it through the globalHash anymore. Magic, huh...

Anyway, by assigning a scalar reference(number, string etc) to the *globalHash glob, you will change the scalar part in the glob. Assigning a list reference will change the list part of it. Note also that this won't work for variables you have declared with my as those don't use glob's.

goldclaw

---

---

• Are you posting in the right place? Check out Where do I post X? to know for sure.
• Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:

  <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>

• Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
• Want more info? How to link or How to display code and escape characters are good places to start.