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How can I verify if one list is a subset of another?
...lookup table can be anything that performs best. The dynamic one is a dict from which we extract the keys to perform a static lookup on. Will this fact alter the solution?
– IUnknown
May 18 '13 at 1:41
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Indenting #defines
...not indented most of the time, because these directives operate separately from the rest of your code. Directives such as #ifdef are handled by the pre-processor, before the compiler ever sees your code, so a block of code after an #ifdef directive may not even be compiled.
Keeping directives visua...
Error : BinderProxy@45d459c0 is not valid; is your activity running?
...vity is being destroyed.
I was seeing this error reported once in a while from some of my apps when the activity calling the dialog was finishing for some reason or another when it tried to show a dialog. Here's what solved it for me:
if(!((Activity) context).isFinishing())
{
//show dialog
}
...
An established connection was aborted by the software in your host machine
...restart adb as well (adb kill-server/adb start-server), does that save you from restarting the computer?
– Björn
Dec 17 '11 at 12:54
3
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Setting Authorization Header of HttpClient
...the Authorization header. I need to set the header to the token I received from doing my OAuth request.
I saw some code for .NET that suggests the following,
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What does “&” at the end of a linux command mean?
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The & makes the command run in the background.
From man bash:
If a command is terminated by the control operator &, the shell
executes the command in the background in a subshell. The shell does
not wait for the command to finish, and
the return st...
AttributeError: 'module' object has no attribute 'urlopen'
... 2+3 compatible solution is:
import sys
if sys.version_info[0] == 3:
from urllib.request import urlopen
else:
# Not Python 3 - today, it is most likely to be Python 2
# But note that this might need an update when Python 4
# might be around one day
from urllib import urlopen
...
printf with std::string?
...riting C++, you generally want to avoid printf entirely -- it's a leftover from C that's rarely needed or useful in C++.
As to why you should use cout instead of printf, the reasons are numerous. Here's a sampling of a few of the most obvious:
As the question shows, printf isn't type-safe. If the...
What is Persistence Context?
..., So once the transaction is finished, all persistent objects are detached from the EntityManager's persistence context and are no longer managed.
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Sorting list based on values from another list?
...rted().
using a list comprehension extract the first elements of each pair from the sorted, zipped list.
For more information on how to set\use the key parameter as well as the sorted function in general, take a look at this.
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