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How to read contacts on Android 2.0

...t.CommonDataKinds.Phone.NUMBER)); } phones.close(); } Cursor emails = getContentResolver().query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = " + contactId, null, null); while (emails.moveT...
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Why is reading lines from stdin much slower in C++ than Python?

...his to the top of your main, you should see much better performance: std::ios_base::sync_with_stdio(false); Normally, when an input stream is buffered, instead of reading one character at a time, the stream will be read in larger chunks. This reduces the number of system calls, which are typically...
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How do function pointers in C work?

...xt of some String class to be "hello". By using function pointers, it is possible to emulate methods in C. How is this accomplished? The String class is actually a struct with a bunch of function pointers which act as a way to simulate methods. The following is a partial declaration of the String...
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Which iomanip manipulators are 'sticky'?

...ode the following manipulators return an object rather than a stream: setiosflags resetiosflags setbase setfill setprecision setw This is a common technique to apply an operation to only the next object that is applied to the stream. Unfortunately this does not preclude them from being sticky. Te...
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Learning assembly [closed]

.... I saw there are a zillion different flavors of assembly, so, for the purposes I mention, how should I start? What kind of assembly should I learn? I want to learn by first doing some easy programs (i.e. a calculator), but the goal itself will be to get accostumed with it so I can understand the co...
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Build fat static library (device + simulator) using Xcode and SDK 4+

...is work nicely with Archive mode. RECENT CHANGES: 1. Added support for iOS 10.x (while maintaining support for older platforms) Info on how to use this script with a project-embedded-in-another-project (although I highly recommend NOT doing that, ever - Apple has a couple of show-stopper bugs i...
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Auto-fit TextView for Android

... + " text:" + text + " maxLines:" + maxLines); } }); } I am posting code here at per android developer's request: Final effect: Sample Layout file: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height...
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How does HTTP file upload work?

...ct a file and submit your form (I've truncated the headers for brevity): POST /upload?upload_progress_id=12344 HTTP/1.1 Host: localhost:3000 Content-Length: 1325 Origin: http://localhost:3000 ... other headers ... Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryePkpFF7tjBAqx29L -...
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Should CSS always preceed Javascript?

... that you have scripts located in the <head> of your document (as opposed to the end of the <body>). There are various arguments regarding why you might link to your scripts in the <head> versus the end of the document, but that's outside the scope of this answer. This is strictl...
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Elegant setup of Python logging in Django

...1, 'disable_existing_loggers': False, 'formatters': { 'verbose': { 'format': '%(levelname)s %(asctime)s %(module)s %(process)d %(thread)d %(message)s' }, 'simple': { 'format': '%(levelname)s %(message)s' }, }, 'filters': { ...