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.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||