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Casting vs using the 'as' keyword in the CLR
... so if you really care about introducing the smallest number of variables possible in every scope, you might still want to use is followed by a cast.
I don't think any of the answers so far (at the time of starting this answer!) have really explained where it's worth using which.
Don't do this:...
How do I parse command line arguments in Bash?
...etopt[s])
Usage demo-space-separated.sh -e conf -s /etc -l /usr/lib /etc/hosts
cat >/tmp/demo-space-separated.sh <<'EOF'
#!/bin/bash
POSITIONAL=()
while [[ $# -gt 0 ]]
do
key="$1"
case $key in
-e|--extension)
EXTENSION="$2"
shift # past argument
shift # past value
...
Search for executable files using find command
...ny execute permissions are set": It means that -perm +111 may yield false positives, i.e., files that the current user cannot actually execute. There's no way to emulate -executable by testing permissions alone, because what's needed is to relate the file's user and group identity to the current use...
How does the socket API accept() function work?
...by some fluke of the random-number-generator both 10.0.0.1 and 10.0.0.2 choose the same local port?
– aroth
Mar 29 '12 at 23:50
...
CALL command vs. START with /WAIT option
...
For exe files, I suppose the differences are nearly unimportant.
But to start an exe you don't even need CALL.
When starting another batch it's a big difference,
as CALL will start it in the same window and the called batch has access to the ...
static const vs #define
...
String constants specifically are one of those that might benefit from being #defined, at least if they can be used as "building blocks" for bigger string constants. See my reply for an example.
– AnT
Oct 28 '09 at 14:10
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Erlang's 99.9999999% (nine nines) reliability
...
The reliability figure wasn't supposed to measure the total time any part of AXD301 (project in question) was ever shut down for over 20 years. It represents the total time over those 20 years that the service provided by the AXD301 system was ever offline. S...
Use numpy array in shared memory for multiprocessing
...ypes
import logging
import multiprocessing as mp
from contextlib import closing
import numpy as np
info = mp.get_logger().info
def main():
logger = mp.log_to_stderr()
logger.setLevel(logging.INFO)
# create shared array
N, M = 100, 11
shared_arr = mp.Array(ctypes.c_double, N)...
Open a URL in a new tab (and not a new window)
I'm trying to open a URL in a new tab, as opposed to a popup window.
33 Answers
33
...
What is the maximum amount of RAM an app can use?
... Are there any differences between the Android versions?
Yes, insofar as OS requirements have increased over the years, and devices have to adjust to match.
Are there differences concerning the manufacturer of the device?
Yes, insofar as manufacturers manufacture devices, and the size varies...