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What is object slicing?
...cing" is where you assign an object of a derived class to an instance of a base class, thereby losing part of the information - some of it is "sliced" away.
For example,
class A {
int foo;
};
class B : public A {
int bar;
};
So an object of type B has two data members, foo and bar.
Then...
BCL (Base Class Library) vs FCL (Framework Class Library)
...
The Base Class Library (BCL) is literally that, the base. It contains basic, fundamental types like System.String and System.DateTime.
The Framework Class Library (FCL) is the wider library that contains the totality: ASP.NET, ...
Use of Finalize/Dispose method in C#
...d of managed resources
}
ReleaseHandle(m_Handle);
base.Dispose(disposing);
}
~C() {
Dispose(false);
}
}
If you're not using unmanaged resources directly (SafeHandle and friends doesn't count, as they declare their own finalizers), then don't implement ...
Django class-based view: How do I pass additional parameters to the as_view method?
I have a custom class-based view
7 Answers
7
...
How do I get the APK of an installed app without root access?
...ut that under Lollipop, the apk path will be /data/app/your-package-name-1/base.apk
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C++ catch blocks - catch exception by value or reference? [duplicate]
...s you "slice off" part of the object if you assign a derived object to its base type, which to me seems like a misleading way to look at it because what is actually happening is that in the base class's copy assignment operator base &operator=(const base &other) the derived object is being i...
How to add image to canvas
...ument.getElementById('viewport'),
context = canvas.getContext('2d');
make_base();
function make_base()
{
base_image = new Image();
base_image.src = 'img/base.png';
base_image.onload = function(){
context.drawImage(base_image, 0, 0);
}
}
I.e. draw the image in the onload callback of t...
完美解决phpcms批量移动内容后，新闻心情、评论排行等不更新的问题 - 更多...
...POST['dosubmit'])) {
$this->content_check_db = pc_base::load_model('content_check_model');
$this->hits_db = pc_base::load_model('hits_model');
$this->mood_db = pc_base::load_model('mood_model');
$this...
How to use range-based for() loop with std::map?
The common example for C++11 range-based for() loops is always something simple like this:
5 Answers
...
Changes in import statement python3
...script/package.
Consider the following tree for example:
mypkg
├── base.py
└── derived.py
Now, your derived.py requires something from base.py. In Python 2, you could do it like this (in derived.py):
from base import BaseThing
Python 3 no longer supports that since it's not explic...