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Android device chooser - My device seems offline
...
I've seen this happen a few times on my HTC Desire. I've never figured out whether the problem is in adb or the device but I usually do the following:
Restart adb by issuing 'adb kill-server' followed by 'adb start-server' at a cmd prompt
Disable and ...
Shared-memory objects in multiprocessing
...haredNumpyMemManager.getInstance()
if __name__ == '__main__':
import timeit
N_PROC = 8
INNER_LOOP = 10000
N = 1000
def propagate(t):
i, shm_hdl, evidence = t
a = SharedNumpyMemManager.getArray(shm_hdl)
for j in range(INNER_LOOP):
a[i] = i
...
'is' versus try cast with null check
...#1
{
var myObjRef = (MyType)myObj.myProp; // needs to be cast a second time
// before using it as a MyType
...
}
to this:
var myObjRef = myObj.myProp as MyType; // only one cast
if (myObjRef != null)
{
// myObjRef is already MyType and doesn't ...
Get time in milliseconds using C#
I'm making a program in which I need to get the time in milliseconds. By time, I mean a number that is never equal to itself, and is always 1000 numbers bigger than it was a second ago. I've tried converting DateTime.Now to a TimeSpan and getting the TotalMilliseconds from that... but I've hea...
How can I explode and trim whitespace?
...rite the file, I saw that there was extra whitespace being added the whole time... this + implode saved my freaking life..I can go eat food now.
– jenki221
May 29 '15 at 20:30
4
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How to use 'cp' command to exclude a specific directory?
...ationfolder --exclude thefoldertoexclude
You can use --exclude multiples times.
rsync -av --progress sourcefolder /destinationfolder --exclude thefoldertoexclude --exclude anotherfoldertoexclude
Note that the dir thefoldertoexclude after --exclude option is relative to the sourcefolder, i.e., ...
What is Delegate? [closed]
...f code, but that piece of code you're going to invoke isn't known until runtime. So you use a "delegate" for that purpose. Delegates come in handy for things like event handlers, and such, where you do different things based on different events, for example.
Here's a reference for C# you can look ...
Truncating floats in Python
... but rounding to 12 decimal places before truncation will work much of the time:
def truncate(f, n):
'''Truncates/pads a float f to n decimal places without rounding'''
s = '%.12f' % f
i, p, d = s.partition('.')
return '.'.join([i, (d+'0'*n)[:n]])
Explanation
The core of the unde...
Replacing NAs with latest non-NA value
... ind = c(1,ind) # first position to the indices
rep(x[ind], times = diff( # repeat the values at these indices
c(ind, length(x) + 1) )) # diffing the indices + length yields how often
} # they need to be repeated
x = c(NA,NA,'a',NA,NA,NA,NA,NA,...
What's the meaning of interface{}?
... type.
When passing a value into the DoSomething function, the Go runtime will perform a type conversion (if necessary), and convert the value to an interface{} value.
All values have exactly one type at runtime, and v's one static type is interface{}.
An interface value is constructed ...