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String's Maximum length in Java - calling length() method
...rings), Chapter 10: Arrays of The Java Language Specification, Java SE 7 Edition says the following:
The variables contained in an array
have no names; instead they are
referenced by array access expressions
that use nonnegative integer index
values. These variables are called the
comp...
How to set a Django model field's default value to a function call / callable (e.g., a date relative
EDITED:
6 Answers
6
...
Position of least significant bit that is set
I am looking for an efficient way to determine the position of the least significant bit that is set in an integer, e.g. for 0x0FF0 it would be 4.
...
Passing a dictionary to a function as keyword parameters
...
Figured it out for myself in the end. It is simple, I was just missing the ** operator to unpack the dictionary
So my example becomes:
d = dict(p1=1, p2=2)
def f2(p1,p2):
print p1, p2
f2(**d)
...
Having issue with multiple controllers of the same name in my project
I am running into the following error with my ASP.NET MVC 3 project:
11 Answers
11
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What is external linkage and internal linkage?
...
When you write an implementation file (.cpp, .cxx, etc) your compiler generates a translation unit. This is the source file from your implementation plus all the headers you #included in it.
Internal linkage refers to everything only ...
Reliable method to get machine's MAC address in C#
I need a way to get a machine's MAC address regardless of the OS it is running using C#. Application will need to work on XP/Vista/Win7 32 and 64 bit as well as on those OSs but with a foreign language default. Many of the C# commands and OS queries don't work across OS. Any ideas? I have been s...
How can I find where Python is installed on Windows?
...follow
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edited Aug 20 at 3:21
Mrityunjai
12322 silver badges88 bronze badges
answered Ma...
How do I append one string to another in Python?
...e.g.
s = ""
for i in range(n):
s+=str(i)
used to be O(n^2), but now it is O(n).
From the source (bytesobject.c):
void
PyBytes_ConcatAndDel(register PyObject **pv, register PyObject *w)
{
PyBytes_Concat(pv, w);
Py_XDECREF(w);
}
/* The following function breaks the notion that strin...
Backwards migration with Django South
... one you want to roll back.
Your app should have a migrations directory, with files in it named like
0000_initial.py
0001_added_some_fields.py
0002_added_some_more_fields.py
0003_deleted_some_stuff.py
Normally, when you run ./manage.py migrate your_app, South runs all new migrations, in order. (...