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Is it a bad practice to use negative margins in Android?

...elativeLayout. In 2016, @RomainGuy stated that they have never been officially supported and won't be supported by ConstraintLayout. It is easy to work around this limitation though. Add an helper view (height 0dp, width constrained to parent) at the bottom of your base view, at the bottom ad...
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How do I verify/check/test/validate my SSH passphrase?

I think I forgot the passphrase for my SSH key, but I have a hunch what it might be. How do I check if I'm right? 5 Answer...
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Populate data table from data reader

I'm doing a basic thing in C# (MS VS2008) and have a question more about proper design than specific code. 5 Answers ...
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CSS 3 slide-in from left transition

Is there a cross browser solution to produce a slide-in transition with CSS only, no javascript? Below is an example of the html content: ...
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String, StringBuffer, and StringBuilder

...o, using String for logic operations is rather slow, and is not advised at all, since the JVM converts the String to a StringBuffer in the bytecode. A lot of overhead is wasted converting from String to StringBuffer and then back to String again. – Pieter van Niekerk ...
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C++ Lock-free Hazard Pointer(冒险指针) - C/C++ - 清泛网 - 专注C/C++及内核技术

C++ Lock-free Hazard Pointer(冒险指针)hazard_pointer1 Safe Reclamation MethodsFolly 的 Hazard Pointer 实现中有一段注释,详细描述了 C++ 里几种主流的安全内存回收方法,列表如下:优点缺点场景Locking易用读高开销 1. Safe Reclamation Methods Fo...
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What is the difference between the kernel space and the user space?

... The really simplified answer is that the kernel runs in kernel space, and normal programs run in user space. User space is basically a form of sand-boxing -- it restricts user programs so they can't mess with memory (and other reso...
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Lazy Method for Reading Big File in Python?

... To write a lazy function, just use yield: def read_in_chunks(file_object, chunk_size=1024): """Lazy function (generator) to read a file piece by piece. Default chunk size: 1k.""" while True: data = file_object.read(chunk_size) if not data: ...
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Using the field of an object as a generic Dictionary key

If I want to use objects as the keys for a Dictionary , what methods will I need to override to make them compare in a specific way? ...
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Return type of '?:' (ternary conditional operator)

Why does the first return a reference? 3 Answers 3 ...