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C dynamically growing array
...aw" list of in-game entities, and I intend to make an array holding an index number (int) of an indeterminate number of entities, for processing various things. I would like to avoid using too much memory or CPU for keeping such indexes...
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Could not load file or assembly Microsoft.SqlServer.management.sdk.sfc version 11.0.0.0
...S SQL Server 2008 R2 and when I try to update model from database under EDMX file I am facing that error.
12 Answers
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push_back vs emplace_back
...s strictly equivalent to push_back(Type&& _Val).
But the real C++0x form of emplace_back is really useful: void emplace_back(Args&&...);
Instead of taking a value_type it takes a variadic list of arguments, so that means that you can now perfectly forward the arguments and construc...
Separating class code into a header and cpp file
...d declarations code of a simple class into a new header and cpp file. For example, how would I separate the code for the following class?
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After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31
Oracle released Java JDK 7 on April 26 for Mac OS X. I followed the install instructions and when I do java -version in a terminal window I get:
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What's the difference between lapply and do.call?
...r to map in other languages:
lapply returns a list of the same length as X, each element of which is the result of applying FUN to the corresponding element of X.
do.call constructs and executes a function call from a name or a function and a list of arguments to be passed to it.
Map applies a fun...
Differences in boolean operators: & vs && and | vs ||
... the rules for && and || but what are & and | ? Please explain these to me with an example.
11 Answers
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Why doesn't Dijkstra's algorithm work for negative weight edges?
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Recall that in Dijkstra's algorithm, once a vertex is marked as "closed" (and out of the open set) - the algorithm found the shortest path to it, and will never have to develop this node again - it assumes the path developed to this path is the shortest.
But with negative ...
How to determine if a number is odd in JavaScript
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Use the bitwise AND operator.
function oddOrEven(x) {
return ( x & 1 ) ? "odd" : "even";
}
function checkNumber(argNumber) {
document.getElementById("result").innerHTML = "Number " + argNumber + " is " + oddOrEven(argNumber);
}
checkNumber(17);
<div i...
Running V8 Javascript Engine Standalone
...shell.
Running the console:
$> ./v8-shell
V8 version 2.0.2
> var x = 10;
> x
10
> function foo(x) { return x * x; }
> foo
function foo(x) { return x * x; }
> quit()
Executing Javascript from the command line:
$> ./v8-shell -e 'print("10*10 = " + 10*10)'
10*10 = 100
Man...