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LINQ Select Distinct with Anonymous Types
...for Distinct()
public override int GetHashCode()
{
return base.GetHashCode();
}
public bool Equals(CommonClass other)
{
if (other == null) return false;
return [equality test];
}
}
...
Get IP address of visitors using Flask for Python
...re users can log on and download files, using the Flask micro-framework (based on Werkzeug ) which uses Python (2.6 in my case).
...
Should I use static_cast or reinterpret_cast when casting a void* to whatever
...
My personal preference is based on code literacy like this:
void* data = something;
MyClass* foo = reinterpret_cast<MyClass*>(data);
foo->bar();
or
typedef void* hMyClass; //typedef as a handle or reference
hMyClass = something;
const MyC...
Which iomanip manipulators are 'sticky'?
...ators return an object rather than a stream:
setiosflags
resetiosflags
setbase
setfill
setprecision
setw
This is a common technique to apply an operation to only the next object that is applied to the stream. Unfortunately this does not preclude them from being sticky. Tests indicate that all of ...
Simple Log to File example for django 1.3+
...
Based partially on the logging config suggested by rh0dium and some more research I did myself, I started assembling an example Django project with nice logging defaults – fail-nicely-django.
Sample logfile output:
2016-0...
Should you always favor xrange() over range()?
... object in Python2. I think what you meant to say is that you can do index-based comprehension (if that makes sense) better with range as opposed to xrange. Range is handy very seldom, I think
– dylnmc
Nov 12 '14 at 0:34
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Chaining multiple filter() in Django, is this a bug?
...style of filtering are equivalent in most cases, but when query on objects base on ForeignKey or ManyToManyField, they are slightly different.
Examples from the documentation.
model
Blog to Entry is a one-to-many relation.
from django.db import models
class Blog(models.Model):
...
class Entry(...
Localization of DisplayNameAttribute
.... We have taken a similar approach to Microsoft, where they override their base attributes and pass a resource name rather than the actual string. The resource name is then used to perform a lookup in the DLL resources for the actual string to return.
For example:
class LocalizedDisplayNameAttribu...
Can jQuery get all CSS styles associated with an element?
...
Would it be possible to get a working demo of this? Not clear to me where to put this code and how to invoke it. It's also not clear to me where the output is being stored. Thanks.
– Cymro
Mar 7 '16 at 18:06
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What is __gxx_personality_v0 for?
...
A quick grep of the libstd++ code base revealed the following two usages of __gx_personality_v0:
In libsupc++/unwind-cxx.h
// GNU C++ personality routine, Version 0.
extern "C" _Unwind_Reason_Code __gxx_personality_v0
...