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How does a language expand itself? [closed]
...nner core of pure hardware to the outermost application layer. Each layer exposes parts of itself to the next outer layer, so that the outer layer may use some of the inner layers functionality.
In the case of e.g. Windows the operating system exposes the so-called WIN32 API for applications runnin...
Where does Visual Studio look for C++ header files?
...ssor in VS 2010 looks into the current dir only if the quoted include syntax is used (e.g #include "whatever.h"). Using angle brackets (e.g #include <whatever.h>) omits the current dir ( msdn.microsoft.com/en-us/library/36k2cdd4(v=VS.100).aspx )
– Dennis Münkle
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#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular s
...hy:
First, you can use DEBUG_ENABLED in preprocessor and compiled tests. Example - Often, I want longer timeouts when debug is enabled, so using #if, I can write this
DoSomethingSlowWithTimeout(DEBUG_ENABLED? 5000 : 1000);
... instead of ...
#ifdef DEBUG_MODE
DoSomethingSlowWithTimeout(5000...
Asynchronous method call in Python?
...rgs[, kwds[, callback]]])
E.g.:
from multiprocessing import Pool
def f(x):
return x*x
if __name__ == '__main__':
pool = Pool(processes=1) # Start a worker processes.
result = pool.apply_async(f, [10], callback) # Evaluate "f(10)" asynchronously calling callback when fin...
Why doesn't adding CORS headers to an OPTIONS route allow browsers to access my API?
I am trying to support CORS in my Node.js application that uses the Express.js web framework. I have read a Google group discussion about how to handle this, and read a few articles about how CORS works. First, I did this (code is written in CoffeeScript syntax):
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Undefined reference to static class member
Can anyone explain why following code won't compile? At least on g++ 4.2.4.
7 Answers
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Javascript and regex: split string and keep the separator
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Use (positive) lookahead so that the regular expression asserts that the special character exists, but does not actually match it:
string.split(/<br \/>(?=&#?[a-zA-Z0-9]+;)/g);
See it in action:
var string = "aaaaaa<br />&dagger; bbbb<br /&...
JSONDecodeError: Expecting value: line 1 column 1 (char 0)
I am getting error Expecting value: line 1 column 1 (char 0) when trying to decode JSON.
16 Answers
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Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error:
...ile I am using a third party dll. The application is running in my Windows XP platform. When I deployed the service in Windows Server 2008 64 bit version, I got this error:
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How can I draw vertical text with CSS cross-browser?
I want to rotate a single word of text by 90 degrees, with cross-browser (>= IE6, >= Firefox 2, any version of Chrome, Safari, or Opera) support. How can this be done?
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