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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
...stdout should be used for actual program output, while all information and error messages should be printed to stderr, so that if the user redirects output to a file, information messages are still printed on the screen and not to the output file.
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How can I dynamically create derived classes from a base class
...Factory call
if key not in argnames:
raise TypeError("Argument %s not valid for %s"
% (key, self.__class__.__name__))
setattr(self, key, value)
BaseClass.__init__(self, name[:-len("Class")])
newclass = type(name, (BaseClass,),{...
PhantomJS failing to open HTTPS site
...use --ssl-protocol=any as you still are using encryption, but --ignore-ssl-errors=true will ignore (duh) all ssl errors, including malicious ones.
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Proper way to declare custom exceptions in modern Python?
...dit: to override something (or pass extra args), do this:
class ValidationError(Exception):
def __init__(self, message, errors):
# Call the base class constructor with the parameters it needs
super(ValidationError, self).__init__(message)
# Now for your custom code...
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What is the JUnit XML format specification that Hudson supports?
...:
<?xml version="1.0" encoding="UTF-8"?>
<testsuites disabled="" errors="" failures="" name="" tests="" time="">
<testsuite disabled="" errors="" failures="" hostname="" id=""
name="" package="" skipped="" tests="" time="" timestamp="">
<properties>...
Is there any way to git checkout previous branch?
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answered Aug 26 '11 at 16:05
Karl BielefeldtKarl Bielefeldt
40.3k99 gold badges5555 silver badges8787 bronze badges
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Why am I getting this error: No mapping specified for the following EntitySet/AssociationSet - Entit
...an entity in the SSDL. If one does not map, it will trigger a compile time error:
No mapping specified for the following EntitySet/AssociationSet - (EntityName)
Another interesting fact is that it's not the kind of error that will prevent compilation. It will, indeed, generate the output clas...
What are the differences between poll and select?
...h sockets and file descriptors you want to watch for reading, writing, and errors, and then the operating system marks which ones in fact have had some kind of activity; poll() has you create a list of descriptor IDs, and the operating system marks each of them with the kind of event that occurred.
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How are software license keys generated?
...at will appear to work but fail on a future version due to a typographical error.
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WebApi's {“message”:“an error has occurred”} on IIS7, not in IIS Express
...art.Data.Linq dll.
To get to that answer, I turned on IIS tracing for 500 errors. That gave a little bit of information, but the really helpful thing was in the web.config setting the <system.web><customErrors mode="Off"/></system.web> This pointed to a missing dynamically-loaded...