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iOS 7 status bar back to iOS 6 default style in iPhone app?
...roller will alter the height of its UINavigationBar to either 44 points or 64 points, depending on a rather strange and undocumented set of constraints. If the UINavigationController detects that the top of its view’s frame is visually contiguous with its UIWindow’s top, then it draws its naviga...
Efficient way to determine number of digits in an integer
... count the number of electrons in the Universe (10^78 last time I did it), 64 bits will do pretty well. 32 bit machines lasted ~~15 years. I'd guess 64 bit machines will last a lot longer. For larger number, multiprecision arithmetic will be fine, and I doubt if efficiency of computing digit coun...
Generating a unique machine id
...t these functions require at least Windows Vista, Windows XP Professional x64 Edition, Windows Server 2008 or Windows Server 2003 with SP1.
– jcoffland
Mar 21 '11 at 20:43
34
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How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu
...eakpoints multiple projects in a solution - some compiled as x86, some as x64.
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Find element's index in pandas Series
...
>>> myseries[myseries == 7]
3 7
dtype: int64
>>> myseries[myseries == 7].index[0]
3
Though I admit that there should be a better way to do that, but this at least avoids iterating and looping through the object and moves it to the C level.
...
iOS: how to perform a HTTP POST request?
...sion, downloadTask: URLSessionDownloadTask,
didWriteData bytesWritten: Int64, totalBytesWritten writ: Int64, totalBytesExpectedToWrite exp: Int64) {
print("downloaded \(100*writ/exp)" as AnyObject)
}
func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, d...
How do CUDA blocks/warps/threads map onto CUDA cores?
...8 cores.
2'. There is a big difference between 8 blocks of 48 threads and 64 blocks of 6 threads. Let's assume that your kernel has no divergence and each thread executes 10 instructions.
8 blocks with 48 threads = 16 warps * 10 instructions = 160 instructions
64 blocks with 6 threads ...
How to deal with floating point number precision in JavaScript?
...egers up to the length of the significand, and as per ECMA standard it's a 64bit float. So it can exactly represent integers up to 2^52
– Michael Borgwardt
Jul 25 '12 at 13:15
5
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Java NIO FileChannel versus FileOutputstream performance / usefulness
...r. Run some benchmarks with buffers of 1KB, 2KB, 4KB, 8KB, 16KB, 32KB and 64KB to prove it to yourself.
Don't perform java benchmarks that read and write to the same disk.
If you do, then you are really benchmarking the disk, and not Java. I would also suggest that if your CPU is not busy, then ...
Download large file in python with requests
...ve
url = 'http://mirror.pnl.gov/releases/16.04.2/ubuntu-16.04.2-desktop-amd64.iso'
dst = 'ubuntu-16.04.2-desktop-amd64.iso'
urlretrieve(url, dst)
Or this way, if you want to save it to a temporary file:
from urllib.request import urlopen
from shutil import copyfileobj
from tempfile import NamedTe...