Categories:
.NET (357)
C (330)
C++ (183)
CSS (84)
DBA (2)
General (7)
HTML (4)
Java (574)
JavaScript (106)
JSP (66)
Oracle (114)
Perl (46)
Perl (1)
PHP (1)
PL/SQL (1)
RSS (51)
Software QA (13)
SQL Server (1)
Windows (1)
XHTML (173)
Other Resources:
Why does Perl not have overloaded functions?
Why does Perl not have overloaded functions?
✍: Guest
Because you can inspect the argument count,
return context, and object types all by yourself.
In Perl, the number of arguments is trivially available
to a function via the scalar sense of @_, the return
context via wantarray(), and the types of the
arguments via ref() if they're references and
simple pattern matching like /^\d+$/ otherwise.
In languages like C++ where you can't do this, you
simply must resort to overloading of functions.
2013-09-06, 1941👍, 0💬
Popular Posts:
Do events have return type ? No, events do not have return type.
What is the difference between delegate and events? ã Actually events use delegates in bottom. But ...
How Are Vertical Margins between Two Block Elements Collapsed? - CSS Tutorials - Understanding Multi...
Why is it preferred to not use finalize for clean up? Problem with finalize is that garbage collecti...
How could Java classes direct program messages to the system console, but error messages, say to a f...