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Using reflect, how do you set the value of a struct field?
...dressable if it is an
element of a slice, an element of an
addressable array, a field of an
addressable struct, or the result of
dereferencing a pointer. If CanAddr
returns false, calling Addr will
panic.
The Go reflect package has a CanSet function, which, if true, implies that CanAdd...
What is the “assert” function?
...)
sum += x[ i ] * y[ i ];
return sum;
}
This tells de compiler the arrays are aligned on 32-bits boundaries, so the compiler can generate specific instructions made for that kind of alignment.
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Using multiple property files (via PropertyPlaceholderConfigurer) in multiple projects/modules
...esPlaceholderConfigurer bean has an alternative property called "propertiesArray". Use this instead of the "properties" property, and configure it with an <array> of property references.
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Warn user before leaving web page with unsaved changes
... Form Serialize function, this will collect all form inputs and save it in array. I guess this explain is enough :)
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How do I test which class an object is in Objective-C?
...an do with that object. For example, if a method returns a pointer to an NSArray object, you should not use this method to see if the array is mutable, as shown in the following code:
// DO NOT DO THIS!
if ([myArray isKindOfClass:[NSMutableArray class]])
{
// Modify the object
}
If you use su...
Virtual functions and performance - C++
... return x=to; } // and so on for the other three
}
Then I set up three arrays each containing 1024 of these vectors (small enough to fit in L1) and ran a loop that added them to one another (A.x = B.x + C.x) 1000 times. I ran this with the functions defined as inline, virtual, and regular functi...
What is digest authentication?
... and a 401 authentication request
Client sends back the following response array (username, realm, generate_md5_key(nonce, username, realm, URI, password_given_by_user_to_browser)) (yea, that's very simplified)
The server takes username and realm (plus it knows the URI the client is requesting) and ...
Advantages of std::for_each over for loop
...t there are other containers in the world than std::vector and plain old C arrays to see the advantages of for_each.
The major drawback of for_each is that it takes a functor, so the syntax is clunky. This is fixed in C++11 (formerly C++0x) with the introduction of lambdas:
std::vector<int> ...
Set timeout for ajax (jQuery)
...nternal Server Error." As of jQuery 1.5, the error
setting can accept an array of functions. Each function will be called
in turn. Note: This handler is not called for cross-domain script and
JSONP requests.
src: http://api.jquery.com/jQuery.ajax/
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How to simplify a null-safe compareTo() implementation?
...
This does not work for Collections.sort(Arrays.asList(null, val1, null, val2, null)) as it will try to call compareTo() on a null object. It looks like a problem with the collections framework to be honest, trying to figure out how to corner this.
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