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Convert string[] to int[] in one line of code using LINQ
...
Given an array you can use the Array.ConvertAll method:
int[] myInts = Array.ConvertAll(arr, s => int.Parse(s));
Thanks to Marc Gravell for pointing out that the lambda can be omitted, yielding a shorter version shown below:
int[] myInts = Array.ConvertAl...
How to run Django's test database only in memory?
...ttings.py to set the engine to sqlite when running my tests:
if 'test' in sys.argv:
DATABASE_ENGINE = 'sqlite3'
Or in Django 1.2:
if 'test' in sys.argv:
DATABASES['default'] = {'ENGINE': 'sqlite3'}
And finally in Django 1.3 and 1.4:
if 'test' in sys.argv:
DATABASES['default'] = {'...
驯服Linux OOM Killer（优质英文资料翻译） - 操作系统(内核) - 清泛网移动...
...的控制。
为什么是 OOM Killer？
主要发行版内核设置/proc/sys/vm/overcommit_memory的默认值 为零，这意味着进程可以请求比系统中当前可用的内存更多的内存。这是基于试探法完成的，即分配的内存不会立即使用，并且进程在其生命...
Converting integer to string in Python
I want to convert an integer to a string in Python. I am typecasting it in vain:
12 Answers
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How to convert hex to rgb using Java?
How can I convert hex color to RGB code in Java? Mostly in Google, samples are on how to convert from RGB to hex.
17 Answer...
Find full path of the Python interpreter?
...
sys.executable contains full path of the currently running Python interpreter.
import sys
print(sys.executable)
which is now documented here
shar...
Odd behavior when Java converts int to byte?
...bits (the 1's to the left of the least significant 8 bits.)
When an int is converted into a byte, Java chops-off the left-most 24 bits
1111111111111111111111111010101
&
0000000000000000000000001111111
=
0000000000000000000000001010101
Since the 32nd bit is now the sign bit instead of the 8th ...
Checking oracle sid and database name
...resume SELECT user FROM dual; should give you the current user
and SELECT sys_context('userenv','instance_name') FROM dual; the name of the instance
I believe you can get SID as SELECT sys_context('USERENV', 'SID') FROM DUAL;
...
C++ convert hex string to signed integer
I want to convert a hex string to a 32 bit signed integer in C++.
9 Answers
9
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How to process SIGTERM signal gracefully?
...s-test.py:
#!/usr/bin/python
from time import sleep
import signal
import sys
def sigterm_handler(_signo, _stack_frame):
# Raises SystemExit(0):
sys.exit(0)
if sys.argv[1] == "handle_signal":
signal.signal(signal.SIGTERM, sigterm_handler)
try:
print "Hello"
i = 0
while T...