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Converting BigDecimal to Integer
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You would call myBigDecimal.intValueExact() (or just intValue()) and it will even throw an exception if you would lose information. That returns an int but autoboxing takes care of that.
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Setting DEBUG = False causes 500 Error
...UG = False , my site will generate 500 (using wsgi & manage.py runserver), and there is no error info in Apache error log and it will run normally when I change debug to True .
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What's the difference between Perl's backticks, system, and exec?
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exec
executes a command and never returns.
It's like a return statement in a function.
If the command is not found exec returns false.
It never returns true, because if the command is found it never returns at all.
There is also no point ...
How did Microsoft create assemblies that have circular references?
... circular reference.
In short:
A is compiled without the code
needing B and the reference to B.
B is compiled.
A is recompiled.
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cocktail party algorithm SVD implementation … in one line of code?
... a slide within the introductory lecture on machine learning by Stanford's Andrew Ng at Coursera, he gives the following one line Octave solution to the cocktail party problem given the audio sources are recorded by two spatially separated microphones:
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Unresolved external symbol on static class members
.../stackoverflow.com/a/11711082/55721)
If using older versions of the C++ standard, you must add the definitions to match your declarations of X and Y
unsigned char test::X;
unsigned char test::Y;
somewhere. You might want to also initialize a static member
unsigned char test::X = 4;
and again, yo...
Convert object string to JSON
...would be much better to just encode the object in valid JSON to begin with and avoid having to parse, encode, then presumably parse it again. HTML supports single-quoted attributes (just be sure to HTML-encode any single quotes inside strings).
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printf with std::string?
My understanding is that string is a member of the std namespace, so why does the following occur?
7 Answers
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Can I set max_retries for requests.request?
The Python requests module is simple and elegant but one thing bugs me.
It is possible to get a requests.exception.ConnectionError with a message like:
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Ruby Regexp group matching, assign variables on 1 line
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Beware that if no matches are found, match returns nil and you get a NilError. If you are in Rails, I suggest you to change: one, two, three = string.match(/(^.*)(:)(.*)/i).captures into: one, two, three = string.match(/(^.*)(:)(.*)/i).try(:captures)
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