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Pimpl idiom vs Pure virtual class interface
...ltiple pimpls depending on the implementation desired. Often this is say a win32 impl vs a linux impl of something that needs to be implemented differently per platform.
– Doug T.
May 5 '09 at 14:10
...
How to completely uninstall Visual Studio 2010?
...al Studio vNext".
Original Answer - for VS2010, VS2012
Note that the following two solutions still leave traces (such as registry files) and can't really be considered a 'clean' uninstall (see the final section of the answer for a completely clean solution).
Solution 1 - for: VS 2010
There's an un...
Multiprocessing: How to use Pool.map on a function defined in a class?
...rictions on what sort of functions pool.map could accept. I wrote the following to circumvent this. It appears to work, even for recursive use of parmap.
from multiprocessing import Process, Pipe
from itertools import izip
def spawn(f):
def fun(pipe, x):
pipe.send(f(x))
pipe.clo...
Making a property deserialize but not serialize with json.net
...rialization.Json & Newtonsoft.Json) and it worked for me like the following:
flag all your class and sub-classes as "DataContract".
flag all the properties of your class and sub-classes as "DataMember".
flag all the properties of your class and sub-classes as "JsonProperty" except those you ...
Merge PDF files
...
f.close()
if __name__ == '__main__':
if sys.platform == "win32":
import os, msvcrt
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
pdf_cat(sys.argv[1:], sys.stdout)
share
|
...
How to convert An NSInteger to an int?
...stem.
#if __LP64__ || TARGET_OS_EMBEDDED || TARGET_OS_IPHONE || TARGET_OS_WIN32 || NS_BUILD_32_LIKE_64
typedef long NSInteger;
#else
typedef int NSInteger;
#endif
You can use NSInteger any place you use an int without converting it.
...
Advantages of std::for_each over for loop
..., replace, etc and these won't look so strange anymore. This can be a huge win.
Update 1:
Most importantly, it helps you go beyond for_each vs. for-loops like that's all there is, and look at the other STL-alogs, like find / sort / partition / copy_replace_if, parallel execution .. or whatever.
A ...
Best practice using NSLocalizedString
...iption:
NSLocalizedString(@"DOWNLOAD_CANCEL_OR_CONTINUE", @"Cancel notice window title when a download takes too long to proceed");
Using the same string in different places
If you use the same string multiple times, you can either use a macro as you did, or cache it as an instance variable in y...
Python __call__ special method practical example
...
@delnan: This is not intended to be shortest. No one wins at code golf. It's intended to show __call__, be simple and nothing more.
– S.Lott
Apr 28 '11 at 21:06
...
App Inventor 2 字典(Dictionary)操作教程 - 键值对数据结构 · App Inventor 2 中文网
...: ["6.001", "18.01", "8.01"]
// }
// 获取第二门课程（索引从1开始）
global secondClass = dictLookupPath(data, list("classes", 2), "")
// secondClass = "18.01"
说明： get value for key 等价于 get value at key path 的路径长度为1的情况。当路径中遇到字典时...