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Execute a terminal command from a Cocoa app
...andle *file = pipe.fileHandleForReading;
NSTask *task = [[NSTask alloc] init];
task.launchPath = @"/usr/bin/grep";
task.arguments = @[@"foo", @"bar.txt"];
task.standardOutput = pipe;
[task launch];
NSData *data = [file readDataToEndOfFile];
[file closeFile];
NSString *grepOutput = [[NSString all...
What's the fastest algorithm for sorting a linked list?
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It is reasonable to expect that you cannot do any better than O(N log N) in running time.
However, the interesting part is to investigate whether you can sort it in-place, stably, its worst-case behavior and so on.
Simon ...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
This is an interview question from google. I am not able to solve it by myself. Can somebody shed some light?
14 Answers
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How do I get both STDOUT and STDERR to go to the terminal and a log file?
...cript which will be run interactively by non-technical users. The script writes status updates to STDOUT so that the user can be sure that the script is running OK.
...
Why do assignment statements return a value?
...ere are only a handful of expressions which are legal statements in C#: awaits of an expression, instance construction, increment, decrement, invocation and assignment expressions may be used where a statement is expected.
There is only one kind of expression in C# which does not produce some sort ...
How to call erase with a reverse iterator
...ard [24.4.1/1] the relationship between i.base() and i is:
&*(reverse_iterator(i)) == &*(i - 1)
(from a Dr. Dobbs article):
So you need to apply an offset when getting the base(). Therefore the solution is:
m_CursorStack.erase( --(i.base()) );
EDIT
Updating for C++11.
reverse_iter...
Split value from one field to two
...bername which contains both the last name and the first name of users. Is it possible to split those into 2 fields memberfirst , memberlast ?
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Git branch strategy for small dev team [closed]
We have a web app that we update and release almost daily. We use git as our VCS, and our current branching strategy is very simple and broken: we have a master branch and we check changes that we 'feel good about' into it. This works, but only until we check in a breaking change.
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When should I use Memcache instead of Memcached?
It seems that PHP has two memcached libraries named memcache and memcached . What is the difference and how do you know which one to use? Is one outdated? It seems that memcached offers more methods so I would assume that means it has had the most development - but it also seems to require exter...
Android adb “Unable to open sync connection!”
...SB port. Sometimes disconnecting and reconnecting the cord worked but then it stopped working completely.
However, disabling USB debugging on the phone and then re-enabling it has worked so far. Hopefully it keeps working! These fixes really seem like silly hacks.. I'm not sure what the underlying ...