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How to write iOS app purely in C

...ssage.h> // This is a hack. Because we are writing in C, we cannot out and include // <UIKit/UIKit.h>, as that uses Objective-C constructs. // however, neither can we give the full function declaration, like this: // int UIApplicationMain (int argc, char *argv[], NSString *principalClassN...
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How do I properly clean up Excel interop objects?

I'm using the Excel interop in C# ( ApplicationClass ) and have placed the following code in my finally clause: 41 Answers ...
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How to create a self-signed certificate with OpenSSL

... You can do that in one command: openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 You can also add -nodes (short for no DES) if you don't want to protect your private key with a passphrase. Otherwise it will prompt you for "...
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Releasing memory in Python

...llocator. The int type maintains a freelist with its own allocated memory, and clearing it requires calling PyInt_ClearFreeList(). This can be called indirectly by doing a full gc.collect. Try it like this, and tell me what you get. Here's the link for psutil.Process.memory_info. import os import...
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Using Kafka as a (CQRS) Eventstore. Good idea?

... events in the stream. Each Kafka topic consists of one or more partitions and each partition is stored as a directory on the file system. There will also be pressure from ZooKeeper as the number of znodes increases. share ...
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When to Redis? When to MongoDB? [closed]

What I want is not a comparison between Redis and MongoDB. I know they are different; the performance and the API is totally different. ...
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?

...e to prepare a little educational tool for SO which should help beginners (and intermediate) programmers to recognize and challenge their unwarranted assumptions in C, C++ and their platforms. ...
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Difference between Char.IsDigit() and Char.IsNumber() in C#

What's the difference between Char.IsDigit() and Char.IsNumber() in C#? 3 Answers ...
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Peak signal detection in realtime timeseries data

...n the principle of dispersion: if a new datapoint is a given x number of standard deviations away from some moving mean, the algorithm signals (also called z-score). The algorithm is very robust because it constructs a separate moving mean and deviation, such that signals do not corrupt the threshol...
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How to avoid reverse engineering of an APK file?

I am developing a payment processing app for Android, and I want to prevent a hacker from accessing any resources, assets or source code from the APK file. ...