From the Camel Book, 4th Edition, page 149:
The goto LABEL form finds the statement labeled with LABEL and resumes execution there. It can’t be used to jump into any construct that requires initialization, such as a subroutine or a foreach loop. It also can’t be used to jump into a construct that has been optimized away.... It can be used to go almost anywhere else within the current block or any block in your dynamic scope (that is, a block you were called from). You can even goto out of subroutines, but it’s usually bettter to use some other construct.
Update: See also the similar discussion on page 881, and note (for whatever it’s worth) the following rather cryptic comment in the section “Time Efficiency” on page 692:
- Avoid goto. It scans outward from your current location for the indicated label.
Hope that helps,
-
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.
|