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byte[] to hex string [duplicate]
...sult: 010204081020
If you want a more compact representation, you can use Base64:
string base64 = Convert.ToBase64String(data);
Result: AQIECBAg
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Obfuscated C Code Contest 2006. Please explain sykes2.c
...it.
Indenting:
main(_) {
_^448 && main(-~_);
putchar(--_%64
? 32 | -~7[__TIME__-_/8%8][">'txiZ^(~z?"-48] >> ";;;====~$::199"[_*2&8|_/64]/(_&2?1:8)%8&1
: 10);
}
Introducing variables to untangle this mess:
main(int i) {
if(i^448)
m...
Fastest way to determine if an integer's square root is an integer
... doing a bit-wise "and." Perfect squares can only end in 0, 1, 4, or 9 in base 16, So for 75% of your inputs (assuming they are uniformly distributed) you can avoid a call to the square root in exchange for some very fast bit twiddling.
Kip benchmarked the following code implementing the hex tric...
Add a custom attribute to a Laravel / Eloquent model on load?
...at various points throughout SessionController (SessionController extends \BaseController) which would be called via URLs such as '/sessions/170071'.
– coatesap
Jun 21 '13 at 13:55
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Using the rJava package on Win7 64 bit with R
I'm trying to install rJava on a computer with Win 7 64 bit. When I run
12 Answers
1...
How to detect total available/free disk space on the iPhone/iPad device?
...m.
Original answer:
I found the following solution working for me:
-(uint64_t)getFreeDiskspace {
uint64_t totalSpace = 0;
uint64_t totalFreeSpace = 0;
NSError *error = nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSD...
Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i
After updating to Xcode 5.1, I can no longer build my project for the 64-bit simulator, receiving this error:
18 Answers
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How to use Boost in Visual Studio 2010
...
Run b2:
Win32: b2 --toolset=msvc-10.0 --build-type=complete stage ;
x64: b2 --toolset=msvc-10.0 --build-type=complete architecture=x86 address-model=64 stage
Go for a walk / watch a movie or 2 / ....
Go through steps 2 - 6 from the set of instruction above to set the environment varia...
How to log a method's execution time exactly in milliseconds?
...
Anything based on NSDate is not safe for measuring passed time because the time can jump, even backwards. A much safer way is to use mach_absolute_time, as shown in many of the other answers here. This one should be downvoted for bein...
How to make rpm auto install dependencies
...
No, this will not work unless libtest1-1.0-1.x86_64.rpm is in a repository elsewhere, or both packages are specified on the command line like "rpm -i" would require. I just verified this on yum 3.4.3 (Fedora 18). Transcript here showing that it goes to the updates repo for ...