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Android AsyncTask threads limits?
...ery time user logs in to the system, I also use database in the phone. For all those operations (updates, retrieving data from db and etc.) I use async tasks. As up till now I didn't see why I shouldn't use them, but recently I experienced that if I do some operations some of my async tasks simply s...
Clang optimization levels
...ass=Arguments
As pointed out in Geoff Nixon's answer (+1), clang additionally runs some higher level optimizations, which we can retrieve with:
echo 'int;' | clang -xc -O3 - -o /dev/null -\#\#\#
Documentation of individual passes is available here.
With version 6.0 the passes are as follow...
List tables in a PostgreSQL schema
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In all schemas:
=> \dt *.*
In a particular schema:
=> \dt public.*
It is possible to use regular expressions with some restrictions
\dt (public|s).(s|t)
List of relations
Schema | Name | Type | Owner
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Do browsers send “\r\n” or “\n” or does it depend on the browser?
...me for a million years... whenever I create a website with a textarea that allows multi-line (such as a "Bio" for a user's profile) I always end up writing the following paranoid code:
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How to get rspec-2 to give the full trace associated with a test failure?
...backtrace (that includes stuff like rails and rspec and other gems) almost all of the time - the only time you ever need it is to debug or understand something caused by the gem itself. So stick to the default backtrace clean patterns, and use -b in the odd case when you need it.
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What are Aggregates and PODs and how/why are they special?
... virtual functions (10.3).
So, OK, let's parse this definition. First of all, any array is an aggregate. A class can also be an aggregate if… wait! nothing is said about structs or unions, can't they be aggregates? Yes, they can. In C++, the term class refers to all classes, structs, and unions....
Git submodule update
...out the specific version of the project, but not within a branch. This is called having a detached head — it means the HEAD file points directly to a commit, not to a symbolic reference.
The issue is that you generally don’t want to work in a detached head environment, because it’s easy to l...
get all keys set in memcached
How can I get all the keys set in my memcached instance(s)?
6 Answers
6
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Failure [INSTALL_FAILED_ALREADY_EXISTS] when I tried to update my application
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If you install the application on your device via adb install you should look for the reinstall option which should be -r. So if you do adb install -r you should be able to install without uninstalling before.
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.htaccess mod_rewrite - how to exclude directory from rewrite rule
...ries on my server from these rules, so they can become accessible. For now all requests are sent to index.php file.
6 Answ...