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Fastest way to determine if an integer's square root is an integer
... fast convert-to-long function so integer operations can be applied on the raw bytes.
the 0x5f3759df - (i >> 1); line is a pre-calculated seed value for the approximation function.
the * (float*) &i converts the value back to floating point.
the y = y * ( threehalfs - ( x2 * y * y ) ) lin...
How can I build a small operating system on an old desktop computer? [closed]
...le system yet ... not even partition table parsing; so we'd just deal with raw ranges of blocks on the disk at first).
At that point your boot loader should be able to pull new code across the serial line, dump it into a partition (yes, implement partition table handling of some sort ... whether it...
Initial bytes incorrect after Java AES/CBC decryption
... final String base64Ciphertext = shadowData[1];
//Convert to raw bytes.
final byte[] keyBytes = Base64.getDecoder().decode(base64Key);
final byte[] ivBytes = Base64.getDecoder().decode(base64Iv);
final byte[] encryptedBytes = Base64.getDecoder().decode(base64Cip...
How to avoid null checking in Java?
...ace Parser {
Action findAction(String userInput);
}
where Parser takes raw user input and finds something to do, perhaps if you're implementing a command line interface for something. Now you might make the contract that it returns null if there's no appropriate action. That leads the null che...
What is Unicode, UTF-8, UTF-16?
... data types: How are they encoded in the programming language? If they are raw bytes, the minute you try to output non-ASCII characters, you may run into a few problems. Also, even if the character type is based on a UTF, that doesn't mean the strings are proper UTF. They may allow byte sequences th...
When should I use C++14 automatic return type deduction?
... work.
As a real-world example, I was asked to change a module from using raw pointers everywhere to smart pointers. Fixing the unit tests was more painful than the actual code.
While there are other ways this could be handled, the use of auto return types seems like a good fit.
...
My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
...Bandwidth in decreasing efficiency:
Plugin networking: Flash sockets are raw except for initial policy request
WebSockets: connection setup handshake and a few bytes per frame
HTTP streaming (re-use of server connection)
HTTP long-poll: connection for every message
HTTP poll: connection for every ...
How to return a string value from a Bash function
...ntf '%q' "$var". %q is a format string for shell escape. Then just pass it raw.
– bb010g
Jul 23 '15 at 21:53
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Solving “Who owns the Zebra” programmatically?
...f your own creation using a technique such as modus ponens to perform the draw the conclusions.
You will, of course, need to add some rules about zebras, since it isn't mentioned anywhere... I believe the intent is that you can figure out the other 4 pets and thus deduce the last one is the zebra?...
How much does it cost to develop an iPhone application? [closed]
...ause you are paying a team of people a healthy hourly wage and any type of raw prototyping, development, and coding takes time. Apps can exceed 60-100k pretty easily. Southwest Airlines making an app with a full ecommerce platform that allows you to buy tickets over your phone is an example. All of ...