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What does “#define _GNU_SOURCE” imply?
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From some mailing list via google:
Look at glibc's include/features.h:
_GNU_SOURCE All of the above, plus GNU extensions.
Which means it enables all this:
STRICT_ANSI, _ISOC99_SOURCE, _POSIX_SOURCE, _POSIX_C_SOURCE,
_XOPEN...
Storing time-series data, relational or non?
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I wrote a blog post about the topic. with google translate you may find it helpful: blog.michaelwittig.info/die-spaltenorientierte-datenbank-kdb
– hellomichibye
Sep 26 '14 at 13:08
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How to match all occurrences of a regex
...Ruby? I've looked through the Regex object in the Ruby STL and searched on Google to no avail.
4 Answers
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Disabling browser print options (headers, footers, margins) from page?
...s only one page.
This does not work in Firefox 3.6, IE 7, Safari 5.1.7 or Google Chrome 4.1.
Setting the @page margin does have effect in IE 8, Opera 10, Google Chrome 21 and Firefox 19.
Although the page margins are set correctly for your content in these browsers, the behavior is not ideal in try...
How to optimize for-comprehensions and loops in Scala?
...m is working on improving for performance in simple cases:
http://groups.google.com/group/scala-user/browse_thread/thread/86adb44d72ef4498
http://groups.google.com/group/scala-language/browse_thread/thread/94740a10205dddd2
Here is the issue in the bug tracker:
https://issues.scala-lang.org/brows...
Read a text file using Node.js?
... on the line boundaries (some people have already came up with solutions - google)
– Mâtt Frëëman
Feb 7 '12 at 3:45
1
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How do I add a library project to Android Studio?
...h the Gradle’ icon . Your library should be available in your project.
Google I/O 2013 - The New Android SDK Build System is a great presentation about building Android apps with Gradle Build System: As Xavier Ducrohet said:
Android Studio is all about editing, and debugging and profiling.
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Building and running app via Gradle and Android Studio is slower than via Eclipse
... is particularly useful for tweaking memory settings.
# https://medium.com/google-developers/faster-android-studio-builds-with-dex-in-process-5988ed8aa37e#.krd1mm27v
org.gradle.jvmargs=-Xmx5120m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
# When configured, Gradle wil...
How to use jQuery in chrome extension?
...r manifest.json
"content_security_policy": "script-src 'self' https://ajax.googleapis.com; object-src 'self'",
Now you are free to load jQuery directly from url
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
Source: google doc
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Difference between HBase and Hadoop/HDFS
...s. Just as Bigtable leverages the distributed data storage provided by the Google File System, Apache HBase provides Bigtable-like capabilities on top of Hadoop and HDFS.
When to use HBase:
If your application has a variable schema where each row is slightly different
If you find that your data i...