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How to determine the current shell I'm working on
... 100%: ps -ef | egrep "^\s*\d+\s+$$\s+". The ^ makes sure we're starting from the beginning of the line, the \d+ eats up the UID, the $$ matches the PID, and the \s* and \s+ account for & ensure whitespace between the other parts.
– Slipp D. Thompson
Mar ...
Limitations of SQL Server Express
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But this is easily worked around: Is there a way to stop SQL Express 2008 from Idling?
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How do I iterate over the words of a string?
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For what it's worth, here's another way to extract tokens from an input string, relying only on standard library facilities. It's an example of the power and elegance behind the design of the STL.
#include <iostream>
#include <string>
#include <sstream>
#include &...
Why doesn't C++ have a garbage collector?
...eople not being able to come to a general consensus fast enough.
A quote from Bjarne Stroustrup himself:
I had hoped that a garbage collector
which could be optionally enabled
would be part of C++0x, but there were
enough technical problems that I have
to make do with just a detailed
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What is the difference between “ is None ” and “ ==None ”
...actually
makes sense; if someone told you to
implement the None object from
scratch, how else would you get it to
compare True against itself?).
Practically-speaking, there is not much difference since custom comparison operators are rare. But you should use is None as a general rule.
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What is the “assert” function?
...on:
assert(foo());
// Here's a safer way:
int ret = foo();
assert(ret);
From the combination of the program calling abort() and not being guaranteed to do anything, asserts should only be used to test things that the developer has assumed rather than, for example, the user entering a number rathe...
How to lazy load images in ListView in Android
... images and captions associated with those images. I am getting the images from the Internet. Is there a way to lazy load images so while the text displays, the UI is not blocked and images are displayed as they are downloaded?
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Determining complexity for recursive functions (Big O notation)
...Fun2(n-5);
}
This function is called n-5 for each time, so we deduct five from n before calling the function, but n-5 is also O(n).
(Actually called order of n/5 times. And, O(n/5) = O(n) ).
int recursiveFun3(int n)
{
if (n <= 0)
return 1;
else
return 1 + recursiveFun3(n...
How to convert comma-separated String to List?
...his returns simply a wrapper on an array: you CANNOT for example .remove() from the resulting List. For an actual ArrayList you must further use new ArrayList<String>.
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Show and hide a View with a slide up/down animation
... facing same issue what Ram was facing, at first time it works fine but from next time when i make that view in gone state and try to make that view visible again it doesn't appear.
– Pankaj kumar
Aug 8 '16 at 10:35
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