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How to set JAVA_HOME in Linux for all users
... don't forget to delete the double quotes and recreate them from your keyboard, because only copying and pasting may create troubles.
– Sunil Kumar
Jan 13 '15 at 15:43
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How do you unit test private methods?
...h the public interface. If they actually perform functions that are hidden from the user (i.e. the unit test), this is probably bad).
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How to write a multidimensional array to a text file?
...s in one line, I'm just being verbose to clarify things):
# Read the array from disk
new_data = np.loadtxt('test.txt')
# Note that this returned a 2D array!
print new_data.shape
# However, going back to 3D is easy if we know the
# original shape of the array
new_data = new_data.reshape((4,5,10))
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Common use-cases for pickle in Python
...n.
To emphasise @lunaryorn's comment - you should never unpickle a string from an untrusted source, since a carefully crafted pickle could execute arbitrary code on your system. For example see https://blog.nelhage.com/2011/03/exploiting-pickle/
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How do I handle too long index names in a Ruby on Rails ActiveRecord migration?
I am trying to add an unique index that gets created from the foreign keys of four associated tables:
9 Answers
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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...portant (so it doesn't matter which order to aggregate each of the results from each of the chunks). Strictly speaking commutativity is not necessary for parallelization, for example distributed sorting algorithms, it just makes the logic easier because you don't need to give your chunks an ordering...
How do I set the proxy to be used by the JVM
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From the Java documentation (not the javadoc API):
http://download.oracle.com/javase/6/docs/technotes/guides/net/proxies.html
Set the JVM flags http.proxyHost and http.proxyPort when starting your JVM on the command line.
T...
Overcoming “Display forbidden by X-Frame-Options”
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I had a similar issue, where I was trying to display content from our own site in an iframe (as a lightbox-style dialog with Colorbox), and where we had an server-wide "X-Frame-Options SAMEORIGIN" header on the source server preventing it from loading on our test server.
This doesn'...
Using querySelector with IDs that are numbers
From what I understand the HTML5 spec lets you use IDs that are numbers like this.
5 Answers
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Start thread with member function
...ream>
class bar {
public:
void foo() {
std::cout << "hello from member function" << std::endl;
}
};
int main()
{
std::thread t(&bar::foo, bar());
t.join();
}
EDIT:
Accounting your edit, you have to do it like this:
std::thread spawn() {
return std::thread(&a...