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Initialize parent's protected members with initialization list (C++)
...you describe. You'll have to add a constructor (could be protected) to the base class to forward it along. Something like:
class Parent
{
protected:
Parent( const std::string& something ) : something( something )
{}
std::string something;
}
class Child : public Parent
{
private:
...
What is the difference between Spring, Struts, Hibernate, JavaServer Faces, Tapestry?
...nd seamless integration of various other technologies.
Struts is an action-based presentation framework (but don't use it for a new development).
Struts 2 is an action-based presentation framework, the version 2 of the above (created from a merge of WebWork with Struts).
Hibernate is an object-relat...
Dual emission of constructor symbols
...e> ::= C1 # complete object constructor
::= C2 # base object constructor
::= C3 # complete object allocating constructor
::= D0 # deleting destructor
::= D1 # complete object destructor
::= D2...
C++ static virtual members?
...ation should be called - the same way as calling regular virtual method on base class instance. (Of course, if C++ supported virtual static methods)
– Spook
Dec 18 '13 at 7:59
13
...
How can I call controller/view helper methods from the console in Ruby on Rails?
...t;head>\n..."
ApplicationController methods:
foo = ActionController::Base::ApplicationController.new
foo.public_methods(true||false).sort
foo.some_method
Route Helpers:
app.myresource_path # => "/myresource"
app.myresource_url # => "http://www.example.com/myresource"
View H...
how to convert binary string to decimal?
...converts strings to numbers, and it takes a second argument specifying the base in which the string representation is:
var digit = parseInt(binary, 2);
See it in action.
share
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关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... ($errno)");
stream_set_blocking($socket_server, 0); // 非阻塞
$base = event_base_new();
$event = event_new();
event_set($event, $socket_server, EV_READ | EV_PERSIST, array(__CLASS__, 'ev_accept'), $base);
event_base_set($event, $base);
event_add($event);
event_base_loop($base);...
How can I check if a file exists in Perl?
...r something exists at given path using the -e file-test operator.
print "$base_path exists!\n" if -e $base_path;
However, this test is probably broader than you intend. The code above will generate output if a plain file exists at that path, but it will also fire for a directory, a named pipe, a ...
What are WSDL, SOAP and REST?
... It actually stands for Web Services Description Language.
SOAP is an XML-based protocol that lets you exchange info over a particular protocol (can be HTTP or SMTP, for example) between applications. It stands for Simple Object Access Protocol and uses XML for its messaging format to relay the in...
What techniques can be used to define a class in JavaScript, and what are their trade-offs?
...ere is no such thing as classes in JavaScript. JavaScript uses a prototype-based inheritance scheme.
In addition, there are numerous popular JavaScript libraries that have their own style of approximating class-like functionality in JavaScript. You'll want to check out at least Prototype and jQue...