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How to get a list of installed android applications and pick one to run
...nderstanding how to get a list of all installed applications and then pick one to run.
17 Answers
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How does one write code that best utilizes the CPU cache to improve performance?
...o avoid alignment holes (sorting your struct members by decreasing size is one way)
Beware of the standard dynamic memory allocator, which may introduce holes and spread your data around in memory as it warms up.
Make sure all adjacent data is actually used in the hot loops. Otherwise, consider brea...
Avoid synchronized(this) in Java?
...int separately.
Some evil code may steal your lock (very popular this one, also has an
"accidentally" variant)
I'm more worried about accidentally. What it amounts to is that this use of this is part of your class' exposed interface, and should be documented. Sometimes the ability of othe...
Namespace + functions versus static methods on a class
...l need to search for side effects in all its methods, including the static ones.
Extension I
Adding code to a class' interface.
In C#, you can add methods to a class even if you have no access to it. But in C++, this is impossible.
But, still in C++, you can still add a namespaced function, even...
Difference between binary semaphore and mutex
...ex better than a binary semaphore then? Since it doesn't make sense if someone releases a lock which he doesn't actually hold.
– Pacerier
Dec 8 '11 at 16:31
116
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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
...t find a perfect answer. I still am not clear on when to use which. Can anyone explain to me, through simple programs and illustrate a perfect situation on when to use which one?
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How can I make Vim's `J` and `gq` commands use one space after a period?
...tions' includes the 'j' flag, only do this after a '.'.
Otherwise only one space is inserted.
NOTE: This option is set when 'compatible' is set.
So, you would do a
:set nojoinspaces
to obtain what you desire.
Alternatively, you can toggle the setting with
:set joinspaces!
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Should I use a data.frame or a matrix?
When should one use a data.frame , and when is it better to use a matrix ?
6 Answers
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How does one output bold text in Bash?
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One wishes Strikethrough was supported on Ubuntu and some of the other popular platforms.
– Dark Star1
Jul 26 '18 at 10:22
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How to check if a string array contains one string in JavaScript? [duplicate]
I have a string array and one string. I'd like to test this string against the array values and apply a condition the result - if the array contains the string do "A", else do "B".
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