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Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
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Best way to test for a variable's existence in PHP; isset() is clearly broken
...ariables to the global scope whose names were determined by aspects of the HTTP request (GET and POST parameters, and cookies). This can lead to buggy and insecure code, which is why it has been disabled by default since PHP 4.2, released Aug 2000 and removed completely in PHP 5.4, released Mar 2012...
How to design a product table for many kinds of product where each product has many parameters
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Using IQueryable with Linq
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“Keep Me Logged In” - the best approach
...ire = 0 [, string $path [, string $domain [, bool $secure = false [, bool $httponly = false ]]]]]] )
secure (Using HTTPS connection)
httponly (Reduce identity theft through XSS attack)
Definitions
Token ( Unpredictable random string of n length eg. /dev/urandom)
Reference ( Unpredictable ran...
Where do you store your salt strings?
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Floating point vs integer calculations on modern hardware
... 6.342832
double mul: 6.321899
double div: 15.362536
This uses code from http://pastebin.com/Kx8WGUfg as benchmark-pc.c
g++ -fpermissive -O3 -o benchmark-pc benchmark-pc.c
I've run multiple passes, but this seems to be the case that general numbers are the same.
One notable exception seems to ...
How to generate a random number in C++?
...0 and RAND_MAX
std::cout << random_number;
return 0;
}
http://en.cppreference.com/w/cpp/numeric/random/rand
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社交应用组件 · App Inventor 2 中文网
...y and Consumer Secret for Twitter authorization specific to your
app from http://twitter.com/oauth_clients/new
属性
ConsumerKey
The consumer key to be used when authorizing with Twitter via OAuth.
ConsumerSecret
The consumer secret to be used when authorizing with Twitter via OAuth.
...
Clang optimization levels
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