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Why does the C preprocessor interpret the word “linux” as the constant “1”?

...le names like unix and assumed that programmers would simply avoid using those names for their own purposes. The 1989 ANSI C standard introduced rules restricting what symbols an implementation could legally predefine. A macro predefined by the compiler could only have a name starting with two unde...
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What can be the reasons of connection refused errors?

... There could be many reasons, but the most common are: The port is not open on the destination machine. The port is open on the destination machine, but its backlog of pending connections is full. A firewall between the client and server is blocking access (also...
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Clear the cache in JavaScript

...evision number or last updated timestamp to the file, like this: myscript.123.js or myscript.js?updated=1234567890 share | improve this answer | follow | ...
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File Upload without Form

...e with properties of file_field to form_data form_data.append("user_id", 123) // Adding extra parameters to form_data $.ajax({ url: "/upload_avatar", // Upload Script dataType: 'script', cache: false, contentType: false, processData: false, data: form_data, // Setting the...
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Are there any Java method ordering conventions? [closed]

... 123 Class (static) variables: First the public class variables, then the protected, and then the ...
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Pod install is staying on “Setting up CocoaPods Master repo”

... You could try running in verbose mode: pod install --verbose This'll show you what cocoapods is up to: Setting up CocoaPods master repo Cloning spec repo `master` from `https://github.com/CocoaPods/Specs.git` (branch `master`) $ /usr/bin/git clone...
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Serializing class instance to JSON

...dict__) returns proper data in the format of: {"value2": "345", "value1": "123"} I had seen posts like this before, wasn't sure whether I needed a custom serializer for members, needing init wasn't mentioned explicitly or I missed it. Thank you. – ferhan Apr 2...
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Android emulator doesn't take keyboard input - SDK tools rev 20

....android.com/tools/devices/managing-avds-cmdline.html#hardwareopts On Mac OS and Linux you can edit all of your emulator configurations with one Terminal command: for f in ~/.android/avd/*.avd/config.ini; do echo 'hw.keyboard=yes' >> "$f"; done On a related note, if your tablet emulator i...
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How to remove trailing whitespace of all files recursively?

... Here is an OS X >= 10.6 Snow Leopard solution. It Ignores .git and .svn folders and their contents. Also it won't leave a backup file. export LC_CTYPE=C export LANG=C find . -not \( -name .svn -prune -o -name .git -prune \) -type f...
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How can I put strings in an array, split by new line?

...ful with this solution, as it does not work on all newlines. I've had the most success with David's answer – Maurice Aug 29 '12 at 7:31 1 ...