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What does JVM flag CMSClassUnloadingEnabled actually do?
...em where the JAX-WS implementation created a new proxy class for every web service call, eventually leading to out of memory errors.
It wasn't trivial to trace. The following code always returned the same proxy class for port
final MyPortType port =
Service.create(
getClass().getResource...
Reading binary file and looping over each byte
...hile byte != "":
# Do stuff with byte.
byte = f.read(1)
finally:
f.close()
Python 2.5-2.7
with open("myfile", "rb") as f:
byte = f.read(1)
while byte != "":
# Do stuff with byte.
byte = f.read(1)
Note that the with statement is not available in versio...
How to use Global Variables in C#?
...er the behavior of static variables declared inside, but it doesn't look really useful.
– Tommaso Belluzzo
Feb 2 at 18:01
...
Why does C++ not have reflection?
...ncy, or programming device drivers, or interaction with the lower-level OS services, or whatever, C++ is better suited to those tasks.
C#, Java, Objective-C all require a much larger, richer runtime system to support their execution. That runtime has to be delivered to the system in question - p...
Find intersection of two nested lists?
... 3 filter returns an iterable instead of list, so you need to wrap filter calls with list():
c3 = [list(filter(lambda x: x in c1, sublist)) for sublist in c2]
Explanation:
The filter part takes each sublist's item and checks to see if it is in the source list c1.
The list comprehension is exec...
How can I output leading zeros in Ruby?
...counter is known (e.g., n = 3 for counters 1..876), you can do
str = "file_" + i.to_s.rjust(n, "0")
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Python: fastest way to create a list of n lists
...
The probably only way which is marginally faster than
d = [[] for x in xrange(n)]
is
from itertools import repeat
d = [[] for i in repeat(None, n)]
It does not have to create a new int object in every iteration and is about 15 % faster on my machine.
Edi...
How to Create Multiple Where Clause Query Using Laravel Eloquent?
... '<>', 'value_2'],
[COLUMN, OPERATOR, VALUE],
...
])
Personally I haven't found use-case for this over just multiple where calls, but fact is you can use it.
Since June 2014 you can pass an array to where
As long as you want all the wheres use and operator, you can group them this ...
“Unknown class in Interface Builder file” error at runtime
...th it, and prints the warning.
By default, Objective-C targets will have -all_load -ObjC flags set by default, which will keep all of the symbols. But I had started with a C++ target, and didn't have that. Nevertheless, I found a way around this, which keeps the linker aggressive.
The hack I was...
Command line for looking at specific port
...-n ensures all ports will be numerical, i.e. not returned as translated to service names.
-a will ensure you search all connections (TCP, UDP, listening...)
In the find string you must include the colon, as the port qualifier, otherwise the number may match either local or foreign addresses.
You ...