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Declaring variables inside loops, good practice or bad practice?

... The compiler knows that the variable scope is limited to inside the loop, and therefore will issue a proper error message if the variable is by mistake referenced elsewhere. Last but not least, some dedicated optimization can be performed more efficiently by the compiler (most importantly register ...
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What is the logic behind the “using” keyword in C++?

...aration. The identifier following the using keyword becomes a typedef-name and the optional attribute-specifier-seq following the identifier appertains to that typedef-name. It has the same semantics as if it were introduced by the typedef specifier. In particular, it does not define a new type and ...
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Is it safe to parse a /proc/ file?

...o even this tiny, trivial file was subject to a race condition until then, and still is in most enterprise kernels. See fs/proc/uptime.c for the current source, or the commit that made it atomic. On a pre-2.6.30 kernel, you can open the file, read a bit of it, then if you later come back and read ...
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How to parse the AndroidManifest.xml file inside an .apk package

This file appears to be in a binary XML format. What is this format and how can it be parsed programmatically (as opposed to using the aapt dump tool in the SDK)? ...
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Transactions in REST?

...er. In the same way that you can add multiple items to a shopping basket and then submit that basket to process the order, you can add Bob's account entry to the transaction wrapper and then Bill's account entry to the wrapper. When all the pieces are in place then you can POST/PUT the transacti...
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Why is it bad style to `rescue Exception => e` in Ruby?

... TL;DR: Use StandardError instead for general exception catching. When the original exception is re-raised (e.g. when rescuing to log the exception only), rescuing Exception is probably okay. Exception is the root of Ruby's exception hi...
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Is it possible to change icons in Visual Studio 2012?

...of the question. I've been unable to find any built-in way to achieve this and the switch to WPF makes it even harder to hack around. This app simply extracts the image resources from the unmanaged DLLs in Visual Studio 2010 and injects them into the DLLs for Visual Studio 2012. The managed resourc...
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What is the difference between min SDK version/target SDK version vs. compile SDK version?

What are the differences between "min sdk version/target sdk version" and "compile sdk version"? I know what min and target sdk means, but what does compile sdk version mean? ...
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When should I use a List vs a LinkedList

...his should not be an accepted answer. As I was learning I did some tests and felt like sharing them. Original answer... I found interesting results: // Temporary class to show the example class Temp { public decimal A, B, C, D; public Temp(decimal a, decimal b, decimal c, decimal d) ...
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Clone private git repo with dockerfile

...tall -y git # Make ssh dir RUN mkdir /root/.ssh/ # Copy over private key, and set permissions # Warning! Anyone who gets their hands on this image will be able # to retrieve this private key file from the corresponding image layer ADD id_rsa /root/.ssh/id_rsa # Create known_hosts RUN touch /root/....