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What's the difference between a Future and a Promise?

What's the difference between Future and Promise ? They both act like a placeholder for future results, but where is the main difference? ...
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Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'

... using mingw (64-bit). I'm working with Python 2.6 (Active Python 2.6.6) and with the adequate distutils.cfg file (setting mingw as the compiler) ...
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How to get the first line of a file in a bash script?

... a bash variable the first line of a file. I guess it is with the grep command, but it is any way to restrict the number of lines? ...
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Reset CSS display property to default value

...with its default value? For example if I have set it to none in one style, and I want to override it in a different with its default. ...
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Clang vs GCC for my Linux Development project

I'm in college, and for a project we're using C. We've explored GCC and Clang, and Clang appears to be much more user friendly than GCC. As a result, I'm wondering what the advantages or disadvantages are to using clang, as opposed to GCC, for developing in C and C++ on Linux? ...
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How to get 0-padded binary representation of an integer in java?

...umbers to format, you can convert your binary representation to BigInteger and then format that with leading zeros, but this is very costly at runtime, as in: String.format("%016d", new BigInteger(Integer.toBinaryString(1))) ...
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Where are static methods and static variables stored in Java?

...stance related). Update for clarification: Note that only the variables and their technical values (primitives or references) are stored in PermGen space. If your static variable is a reference to an object that object itself is stored in the normal sections of the heap (young/old generation or...
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Nginx 403 forbidden for all files

.../demo, etc. for www-data x access. My guess is that /home is probably 770 and www-data can't chdir through it to get to any subdir. If it is, try chmod o+x /home (or whatever dir is denying the request). EDIT: To easily display all the permissions on a path, you can use namei -om /path/to/check ...
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How to remove all null elements from a ArrayList or String Array?

... For Java 8 or later, see @MarcG's answer below. – Andy Thomas Feb 6 '16 at 15:16 2 @Hemanth Ca...
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How can I produce an effect similar to the iOS 7 blur view?

...of the rules of expectation of what APple will do. – Andrew Johnson Sep 1 '13 at 22:10 117 I ran ...