Beeing someone who has written quite some lines of C code
I'd say this description as a whole is correct, although
I never thought of pointers and references as beeing
almost the same. But that's more a philosophical point
of view. When it comes to the machine level, the general
statement holds.
Concerning the performance issue, the correct answer is:
it depends. If you have to walk through a long inheritance
tree to check whether or not one object has been derived
from the other or not, this is going to cost something.
But then again, you are using features (type safety) that
aren't available for pointers.
The point is, just as with memomry management, that you
save a lot of time for coding and debugging, and you trade
that for a (often marginal) degradation in performance.
Hey, my first writeup here. Don't judge to harsh ... ;-))
Cheers
Andreas
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:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.