Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??

I dont think its fair to equate each(%hash) and filehandles, the reason being that I can have multiple filehandles open on the same file without any interference problems. But with each, you have to always consider that any traversal of the hash has to be completely independent. Thus a routine that takes a filename and traverses the file calling out a callback to process each chunk is totally safe. The equivelent routine that takes a hash and traverses it using each calling out to a callback runs the serious risk that the hashes iterator will be reset or changed by user code.

I can think of all kinds of behaviour that is totally safe with filehandles and is not safe with each(%hash). They just aren't the same thing.

---
$world=~s/war/peace/g


In reply to Re^7: Spot the bug by demerphq
in thread Spot the bug by tlm

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • 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.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others studying the Monastery: (6)
As of 2024-04-19 14:15 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found