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Extracting hours from a DateTime (SQL Server 2005)
...d the date reserved word though. Of course that's in case your column with timestamp is labeled "date")
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Share Large, Read-Only Numpy Array Between Multiprocessing Processes
...pickle data to the child if one needs data that has been created during runtime of the parent.
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Compiled vs. Interpreted Languages
...mple, the same "+" operation would be recognised by the interpreter at run time, which would then call its own "add(a,b)" function with the appropriate arguments, which would then execute the machine code "ADD" instruction.
You can do anything that you can do in an interpreted language in a compile...
Using C# regular expressions to remove HTML tags
... avoid being accused of inadequately answering the question after all this time, here's a simple, reliable snippet using the HTML Agility Pack that works with even most imperfectly formed, capricious bits of HTML:
HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(Properties.Resources.HtmlContents...
Understanding the Gemfile.lock file
...s a record of the exact versions of all of the gems that you used the last time you know for sure that the application worked...
This is important: the Gemfile.lock makes your application a single package of both your own code and the third-party code it ran the last time you know for sure that ever...
Can a C++ enum class have methods?
...();
And the compiler will prevent things like:
Fruit f = 1; // Compile time error.
You could easily add methods such that:
Fruit f("Apple");
and
f.ToString();
can be supported.
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Useful code which uses reduce()? [closed]
... Doing some benchmarks, the 'ugly' way is faster for large lists. timeit.repeat('int("".join(map(str, digit_list)))', setup = 'digit_list = list(d%10 for d in xrange(1,1000))', number=1000) takes ~0.09 seconds while timeit.repeat('reduce(lambda a,d: 10*a+d, digit_list)', setup = 'digit_list...
Timeout on a function call
... are running on UNIX:
In [1]: import signal
# Register an handler for the timeout
In [2]: def handler(signum, frame):
...: print("Forever is over!")
...: raise Exception("end of time")
...:
# This function *may* run for an indetermined time...
In [3]: def loop_forever():
...: ...
std::string formatting like sprintf
...s ... ) + 1; // Extra space for '\0'
if( size <= 0 ){ throw std::runtime_error( "Error during formatting." ); }
std::unique_ptr<char[]> buf( new char[ size ] );
snprintf( buf.get(), size, format.c_str(), args ... );
return std::string( buf.get(), buf.get() + size - 1 ); // ...
Appending to an existing string
...notes.where(:author_id => a).first presumably returns a new object each time, which will have its own independent string.
– sepp2k
Dec 21 '12 at 11:44
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