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Boolean literals in PowerShell
...ional statements. Most non-null objects are true, for example. null, empty strings, empty arrays and the number 0 are false.
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Is gcc 4.8 or earlier buggy about regular expressions?
...lt;iostream>
int main() {
const std::regex regex(".*");
const std::string string = "This should match!";
const auto result = std::regex_search(string, regex);
#if HAVE_WORKING_REGEX
std::cerr << "<regex> works, look: " << std::boolalpha << result << std::end...
Does MSTest have an equivalent to NUnit's TestCase?
...esktop, UWP, ...) use the DataRow-attribute!
[TestClass]
public class StringFormatUtilsTest
{
[DataTestMethod]
[DataRow("tttt", "")]
[DataRow("", "")]
[DataRow("t3a4b5", "345")]
[DataRow("3&amp;amp;5*", "35")]
[DataRow("123", "123")]
publi...
What is 'YTowOnt9'?
...k sometimes renders hidden inputs with value YTowOnt9 . I can't find that string anywhere in the (huge) codebase, and can't figure out where it came from. I decided to Google for that particular string, and the result surprised me. Over half a million - kind of random - hits. I haven't found any ...
How to return an array from JNI to Java?
...e the return value. If you wanted to create a single dimensional array of Strings then you'd use the NewObjectArray() function but with a different parameter for the class.
Since you want to return an int array, then your code is going to look something like this:
JNIEXPORT jintArray JNICALL Ja...
delete map[key] in go?
...
Strangely enough,
package main
func main () {
var sessions = map[string] chan int{};
delete(sessions, "moo");
}
seems to work. This seems a poor use of resources though!
Another way is to check for existence and use the value itself:
package main
func main () {
var sessions = ...
Shallow copy of a Map in Java
...ap here, but it works for every implementation of the Map interface
Map<String, Object> data = new HashMap<String, Object>();
Map<String, Object> shallowCopy = new HashMap<String, Object>();
shallowCopy.putAll(data);
...
Memcached vs. Redis? [closed]
...and will give you back memory it is no longer using.
I stored 100,000 ~2KB strings (~200MB) of random sentences into both. Memcached RAM usage grew to ~225MB. Redis RAM usage grew to ~228MB. After flushing both, redis dropped to ~29MB and memcached stayed at ~225MB. They are similarly efficient in h...
How to convert list of tuples to multiple lists?
...xs, ys
if __name__ == '__main__':
from timeit import timeit
setup_string='''\
N = 2000000
xs = list(range(1, N))
ys = list(range(N+1, N*2))
zs = list(zip(xs, ys))
from __main__ import t1, t2, t3
'''
print(f'zip:\t\t{timeit('t1(zs)', setup=setup_string, number=1000)}')
print(f'append...
When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
...tem.Net.HttpWebRequest]::Create($url)
}
else {
$URL_Format_Error = [string]"Connection protocol not specified. Recommended action: Try again using protocol (for example 'http://" + $url + "') instead. Function aborting..."
Write-Error $URL_Format_Error
return
}
It looks like t...