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How to write iOS app purely in C
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Damn, it took me a while but I got it:
main.c:
#include <CoreFoundation/CoreFoundation.h>
#include <objc/runtime.h>
#include <objc/message.h>
// This is a hack. Because we are writing in C, we cannot out and i...
What is an Android PendingIntent?
... predefined piece of code.
If you give the foreign application an Intent, it will execute your Intent with its own permissions. But if you give the foreign application a PendingIntent, that application will execute your Intent using your application's permission.
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Is Big O(logn) log base e?
...data structures, I see the Big O notation is typically noted as O(logn). With a lowercase 'l' in log, does this imply log base e (n) as described by the natural logarithm? Sorry for the simple question but I've always had trouble distinguishing between the different implied logarithms.
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How does delete[] “know” the size of the operand array?
...array's boundaries to delete[] . But where is that information stored? Is it standardised?
9 Answers
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What is a callback?
What's a callback and how is it implemented in C#?
11 Answers
11
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Is iterating ConcurrentHashMap values thread safe?
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What does it mean?
That means that each iterator you obtain from a ConcurrentHashMap is designed to be used by a single thread and should not be passed around. This includes the syntactic sugar that the for-each loop provides.
Wh...
App can't be opened because it is from an unidentified developer
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It's because of the Security options.
Go to System Preferences... > Security & Privacy and there should be a button saying Open Anyway, under the General tab.
You can avoid doing this by changing the options under Al...
Choosing between MEF and MAF (System.AddIn)
The Managed Extensibility Framework (MEF) and Managed AddIn Framework (MAF, aka System.AddIn) seem to accomplish very similar tasks. According to this Stack Overflow question, Is MEF a replacement for System.Addin? , you can even use both at the same time.
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How to delete large data of table in SQL without log?
...cate table will simply empty the table, you cannot use WHERE clause to limit the rows being deleted and no triggers will be fired.
On the other hand if you are deleting more than 80-90 Percent of the data, say if you have total of 11 Million rows and you want to delete 10 million another way would...
How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
How do I delete a directory and its entire contents (files and subdirectories) in PHP?
21 Answers
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