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iOS Image Orientation has Strange Behavior
For the past few weeks I've been working with images in objective-c and noticing a lot of strange behavior. First, like many other people, I've been having this problem where images taken with the camera (or taken with somebody else's camera and MMS'd to me) are rotated 90 degrees. I wasn't sure w...
MySQL Select Date Equal to Today
I'm trying to run a mysql select statement where it looks at today's date and only returns results that signed up on that current day. I've currently tried the following, but it doesn't seem to work.
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What does [ N … M ] mean in C aggregate initializers?
From sys.c line 123:
1 Answer
1
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How do I append one string to another in Python?
...s to extend the string in place.
The end result is that the operation is amortized O(n).
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_C...
How to find where a method is defined at runtime?
We recently had a problem where, after a series of commits had occurred, a backend process failed to run. Now, we were good little boys and girls and ran rake test after every check-in but, due to some oddities in Rails' library loading, it only occurred when we ran it directly from Mongrel in pro...
Initializing IEnumerable In C#
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Ok, adding to the answers stated you might be also looking for
IEnumerable<string> m_oEnum = Enumerable.Empty<string>();
or
IEnumerable<string> m_oEnum = new string[]{};
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Cost of len() function
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It's O(1) (constant time, not depending of actual length of the element - very fast) on every type you've mentioned, plus set and others such as array.array.
share
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How to tag an older commit in Git?
...et a tag at the beginning of our repository.
Our production code is the same as the beginning repository, but we've made commits since then.
A tag at the beginning would allow us to "roll back" production to a known, stable state.
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What is the difference between DAO and Repository patterns?
...AO with Hibernate: http://gochev.blogspot.ca/2009/08/hibernate-generic-dao.html.
Then what is Repository pattern? Like DAO, Repository pattern is also a way achieving DAL. The main point in Repository pattern is that, from the client/user perspective, it should look or behave as a collection. What ...
How to declare constant map
I am trying to declare to constant in Go, but it is throwing an error. Could anyone please help me with the syntax of declaring a constant in Go?
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