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Calling Java varargs method with single null argument?
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@ArunKumar asList() is a static import from the java.util.Arrays class. I just assumed it was obvious. Although now that I'm thinking about it, I probably should have just used Arrays.toString() since the only reason it gets converted to a List is so it will print...
How to check whether a string is Base64 encoded or not
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from the documentation: isArrayByteBase64(byte[] arrayOctet) Deprecated. 1.5 Use isBase64(byte[]), will be removed in 2.0.
– Avinash R
Dec 5 '13 at 4:32
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
...pent in iostream library code (full compiler optimizations), and switching from iostreams to OS-specific I/O APIs and custom buffer management does give an order of magnitude improvement.
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How to set NODE_ENV to production/development in OS X
...a config.json file in your directory and everytime your app runs, it reads from it and sets the configuration.
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Where can I find my .emacs file for Emacs running on Windows?
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Copy and pasted from the Emacs FAQ, http://www.gnu.org/software/emacs/windows/:
Where do I put my init file?
On Windows, the .emacs file may be called _emacs for backward compatibility with DOS and FAT filesystems where filenames could not...
How can one print a size_t variable portably using the printf family?
...d not featured in the list of printf() length modifiers of the C++0x draft from 2009-11-09 (table 84 on page 672)
– Christoph
Mar 26 '10 at 16:28
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How do I debug an MPI program?
...ce Analysis Tool (STAT). We use this at Livermore to collect stack traces from potentially hundreds of thousands of running processes and to represent them intelligently to users. It's not a full-featured debugger (a full-featured debugger would never scale to 208k cores), but it will tell you whi...
How can I clear or empty a StringBuilder? [duplicate]
...ngth to zero. The remaining allocations are still there. This answer stems from the javascript length = 0 for arrays, which performs a magical operation to mark the array reusable, but even there i am not sure, and don't trust it. The underlying array will never be garbage collected.
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What is trunk, branch and tag in Subversion? [duplicate]
...ion", especially Chapter 4: Branching and Merging or buy it in paper (e.g. from amazon) for an in-depth discussion of the technical details.
As others (e.g. Peter Neubauer below) the underlying implementation as /tags /branches and /trunk directories is only conventional and not in any way enforced...
Add timestamps to an existing table
...ns, default: DateTime.now
change_column_default :campaigns, :created_at, from: DateTime.now, to: nil
change_column_default :campaigns, :updated_at, from: DateTime.now, to: nil
end
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