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Installed Ruby 1.9.3 with RVM but command line doesn't show ruby -v
...thing to RVM that produces lots of errors, the only safe way of fixing for now is to:
sudo apt-get --purge remove ruby-rvm
sudo rm -rf /usr/share/ruby-rvm /etc/rvmrc /etc/profile.d/rvm.sh
open new terminal and validate environment is clean from old RVM settings (should be no output):
env | grep ...
Draw in Canvas by finger, Android
...ngth - 1);
int i = (int)p;
p -= i;
// now p is just the fractional part [0...1) and i is the index
int c0 = colors[i];
int c1 = colors[i+1];
int a = ave(Color.alpha(c0), Color.alpha(c1), p);
int r = ave(Color.red(c0...
Volatile vs. Interlocked vs. lock
...
+1 for ensuring me to forget about lock-free coding from now.
– Xaqron
Jan 3 '11 at 1:51
5
...
What is the purpose of mock objects?
...ng production code (e.g. without changing the waiter code).
Mock Objects
Now, the test cook (test double) could be implemented different ways:
a fake cook - a someone pretending to be a cook by using frozen dinners and a microwave,
a stub cook - a hot dog vendor that always gives you hot dogs no...
How does the Amazon Recommendation feature work?
...ile of you
Demographic information (your shipping address, etc.) - they know what is popular in your general area for your kids, yourself, your spouse, etc.
user segmentation = did you buy 3 books in separate months for a toddler? likely have a kid or more.. etc.
Direct marketing click throug...
How to use shared memory with Linux in C
...
Haha I know what you mean, but it's actually because we're not used to reading manpages. When I learned to read them and got used to them, they became even more useful than lousy tutorials with particular demonstrations. I remember I...
How do I trim leading/trailing whitespace in a standard way?
...st answer isn't good at all unless you don't care about memory leaks. You now have two overlapping strings (the original, which has it's trailing spaces trimmed, and the new one). Only the original string can be freed, but if you do, the second one points to freed memory.
– D...
When should I use C++14 automatic return type deduction?
... irrelevant to understanding this part of the code: the compiler needs to know and we could probably work it out but we don't need to say it here"?
Since "readability" is not objectively defined[*], and furthermore it varies by reader, you have a responsibility as the author/editor of a piece of co...
commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
...So, if they were originally sitting inside a <form>, then they would now not anymore sit in a <form>. See also p:commandbutton action doesn't work inside p:dialog
Bug in the framework. For example, RichFaces has a "conversion error" when using a rich:calendar UI element with a defaultLa...
Merging: Hg/Git vs. SVN
...ercurial it is simply commit objects that can have more than one parent.
"Known Issues" subsection for merge tracking in Subversion suggests that repeated / cyclic / reflective merge might not work properly. It means that with the following histories second merge might not do the right thing ('A' c...