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Android Log.v(), Log.d(), Log.i(), Log.w(), Log.e() - When to use each one?
...ow you specifically map them to debug logs in your code depends on the component or app you're working on, as well as how Android treats them on different build flavors (eng, userdebug, and user). I have done a fair amount of work in the native daemons in Android, and this is how I do it. It may n...
What does T&& (double ampersand) mean in C++11?
I've been looking into some of the new features of C++11 and one I've noticed is the double ampersand in declaring variables, like T&& var .
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How to set the UITableView Section title programmatically (iPhone/iPad)?
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Nothing wrong with the other answers but this one offers a
non-programmatic solution that may be useful in situations where one
has a small static table. The benefit is that one can organize the
localizations using the storyboard. One may continue to export
local...
What is the purpose of XORing a register with itself? [duplicate]
...here are bound to be zero bytes somewhere in your code, so I don't see how one more would make much difference. Anyway, who cares if you can trick a program into reading code as data. The real problem is executing data as code.
– Stephen C
Sep 8 '09 at 22:36
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Getting the first index of an object
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If you know that the object has only one element, then you do know the order.
– danorton
Sep 24 '10 at 6:44
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Determine if a String is an Integer in Java [duplicate]
...better.
str.matches("-?\\d+");
-? --> negative sign, could have none or one
\\d+ --> one or more digits
It is not good to use NumberFormatException here if you can use if-statement instead.
If you don't want leading zero's, you can just use the regular expression as follow:
str....
Are global variables in PHP considered bad practice? If so, why?
...riables aren't really global in PHP. The scope of a typical PHP program is one HTTP request. Session variables actually have a wider scope than PHP "global" variables because they typically encompass many HTTP requests.
Often (always?) you can call member functions in methods like preg_replace_call...
What is LDAP used for?
... is LDAP.
The use model is similar like how people use library cards or phonebooks. When you have a task that requires “write/update once, read/query many times”, you might consider using LDAP. LDAP is designed to provide extremely fast read/query performance for a large scale of dataset. Typic...
Multiprocessing vs Threading Python [duplicate]
...o the GIL the app isn't actually doing two things at once, but what we've done is put the resource lock on the database into a separate thread so that CPU time can be switched between it and the user interaction. CPU time gets rationed out between the threads.
Multiprocessing is for times when you ...
Is there a “theirs” version of “git merge -s ours”?
... only fall back to "theirs" logic in case of conflicts. While this is what one needs in most cases like above, this is not the same as "just take everything from branch B as is". It does the real merge instead anyway.
– Timur
Oct 14 '13 at 11:57
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