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How do I measure execution time of a command on the Windows command line?
... keyname.
-a specifies that timeit should display average of all timings
for the specified key.
-i specifies to ignore non-zero return codes from program
-d specifies to show detail for average
-s specifies to suppress system w...
Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
...ake patches to my answer :-)
Similarities:
Both Solr and Sphinx satisfy all of your requirements. They're fast and designed to index and search large bodies of data efficiently.
Both have a long list of high-traffic sites using them (Solr, Sphinx)
Both offer commercial support. (Solr, Sphinx)
Bot...
Overloaded method selection based on the parameter's real type
...n Java, dynamic method dispatch happens only for the object the method is called on, not for the parameter types of overloaded methods.
Citing the Java Language Specification:
When a method is invoked (§15.12), the
number of actual arguments (and any
explicit type arguments) and the
comp...
Why is MATLAB so fast in matrix multiplication?
...
Here's my results using MATLAB R2011a + Parallel Computing Toolbox on a machine with a Tesla C2070:
>> A = rand(1024); gA = gpuArray(A);
% warm up by executing the operations a couple of times, and then:
>> tic, C = A * A; toc
Elapsed time is 0.075396 sec...
What is event bubbling and capturing?
...utermost element and propagated to the inner elements.
Capturing is also called "trickling", which helps remember the propagation order:
trickle down, bubble up
Back in the old days, Netscape advocated event capturing, while Microsoft promoted event bubbling. Both are part of the W3C Document...
NSLog/printf specifier for NSInteger?
... z and t modifiers to handle NSInteger and NSUInteger without warnings, on all architectures.
You want to use %zd for signed, %tu for unsigned, and %tx for hex.
This information comes courtesy of Greg Parker.
Original answer:
The official recommended approach is to use %ld as your specifier, a...
Access to Modified Closure (2)
...Access to Modified Closure . I just want to verify if the following is actually safe enough for production use.
1 Answer
...
What's the difference between an id and a class?
... to a specific element and class when you have a number of things that are all alike. For instance, common id elements are things like header, footer, sidebar. Common class elements are things like highlight or external-link.
It's a good idea to read up on the cascade and understand the precedence ...
Get query from java.sql.PreparedStatement [duplicate]
...re lucky, the JDBC driver in question may return the complete SQL by just calling PreparedStatement#toString(). I.e.
System.out.println(preparedStatement);
To my experience, the ones which do so are at least the PostgreSQL 8.x and MySQL 5.x JDBC drivers. For the case your JDBC driver doesn't supp...
Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
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I've made sure all the class are already set, but the NSUnknownKeyException still comes out :(
– Zennichimaro
Apr 3 '13 at 3:40
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