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Best practice for Django project working directory structure
I know there is actually no single right way. However I've found that it's hard to create a directory structure that works well and remain clean for every developer and administrator. There is some standard structure in most projects on github. But it does not show a way to organize another files an...
How can I tell gcc not to inline a function?
...ep such calls from being
optimized away, put
asm ("");
Use it like this:
void __attribute__ ((noinline)) foo()
{
...
}
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No ConcurrentList in .Net 4.0?
...ed to see the new System.Collections.Concurrent namespace in .Net 4.0, quite nice! I've seen ConcurrentDictionary , ConcurrentQueue , ConcurrentStack , ConcurrentBag and BlockingCollection .
...
How do I filter query objects by date range in Django?
...cts.filter(date__year='2011',
date__month='01')
Edit
As Bernhard Vallant said, if you want a queryset which excludes the specified range ends you should consider his solution, which utilizes gt/lt (greater-than/less-than).
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Python class inherits object
Is there any reason for a class declaration to inherit from object ?
6 Answers
6
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How to apply a function to two columns of Pandas dataframe
...
Here's an example using apply on the dataframe, which I am calling with axis = 1.
Note the difference is that instead of trying to pass two values to the function f, rewrite the function to accept a pandas Series object, and then index the Series to get the values needed.
In [49]: df
Out[...
C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
...
struct HazardPointer {
public:
class Holder {
public:
explicit Holder(HazardPointer<T> *pointer) : pointer_(pointer) {}
Holder(const HazardPointer &) = delete;
~Holder() { pointer_->Release(); }
T *get() const { return pointer_->target_.load(std::memory_order_acquire); ...
relative path in require_once doesn't work
...rom a different folder and therefore the relatives paths will not work.
Edit: slash problem fixed
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Java: Calling a super method which calls an overridden method
...e is no direct way to call SuperClass.method2() from SuperClass.method1() without going though SubClass.method2() unless you're working with an actual instance of SuperClass.
You can't even achieve the desired effect using Reflection (see the documentation of java.lang.reflect.Method.invoke(Object,...
Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...
Culprit: False Data Dependency (and the compiler isn't even aware of it)
On Sandy/Ivy Bridge and Haswell processors, the instruction:
popcnt src, dest
appears to have a false dependency on the destination register dest. Even ...