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Declaring abstract method in TypeScript
...eate a pretty decent implementation of abstract classes, with full support for polymorphism and the ability to call implemented methods from the base class. Let's start with the code:
/**
* The interface defines all abstract methods and extends the concrete base class
*/
interface IAnimal extends...
What's the difference between the atomic and nonatomic attributes?
... class is correctly implemented, which is another way of saying that it conforms to its specification, no sequence of operations (reads or writes of public fields and calls to public methods) on objects of that class should be able to put the object into an invalid state, observe the object to be in...
Encrypt & Decrypt using PyCrypto AES 256
...
Here is my implementation and works for me with some fixes and enhances the alignment of the key and secret phrase with 32 bytes and iv to 16 bytes:
import base64
import hashlib
from Crypto import Random
from Crypto.Cipher import AES
class AESCipher(object):
...
Python: Checking if a 'Dictionary' is empty doesn't seem to work
...
Sigh ... everybody likes to be "pythonic" and goes for the least characters to type. First, another criteria is readability. Second, the first test in the answer above is true not only if the dict exists and is empty, but also if test_dict is None. So use this test only when ...
How do I disable a Pylint warning?
...
@Head Geek: well, it works for me. ~/.pylintrc with two lines, [MESSAGES CONTROL] and disable=C0321. That prevents that message.
– Chris Morgan
Dec 3 '10 at 3:56
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error: ‘uint16_t’ does not name a type - C/C++ - 清泛网 - 专注C/C++及内核技术
...NCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FR...
Failed to load JavaHL Library
...libsvnjavahl-1.so
The output from the last command could look like this, for example:
/usr/lib/x86_64-linux-gnu/jni/libsvnjavahl-1.so
This gives you the path, so you can add the following to your eclipse.ini:
-Djava.library.path=/usr/lib/x86_64-linux-gnu/jni/
...
Why use HttpClient for Synchronous Connection
...and process the XML response. I can see the benefits of using HttpClient for Asynchronous connectivity, but what I am doing is purely synchronous, so I cannot see any significant benefit over using HttpWebRequest .
...
Is there a ceiling equivalent of // operator in Python?
...
–1 do not use, this will begin to fail for very large integers. Either use a multiple-precision arithmetic library or stay in the integer domain with this approach.
– wim
May 30 '17 at 20:21
...
use of deleted function std::unique_ptr 编译错误剖析，你可能少了一个st...
use of deleted function std::unique_ptr 编译错误剖析，你可能少了一个std::move编译报错日志如下： usr include c++ 4 7 bits stl_construct h:77:7: error: use of deleted function & 39;std::unique_ptr<_Tp, _Dp>::unique_ptr(const std::unique_p 编译报错日志如下：
/usr/...