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C++ SpinLock 自旋锁的代码实现（全网最简略的方式） - C/C++ - 清泛网 - ...
C++ SpinLock 自旋锁的代码实现（全网最简略的方式）cpp_spinlock1、最简单的一种，来自《C++并发编程实战》第5章 C++内存模型和原子类型操作： include <iostream> include <atomic> include <thread> include <vector> include <unistd h 1、最简单的一种，...
Submitting a multidimensional array via POST with php
...
On submitting, you would get an array as if created like this:
$_POST['topdiameter'] = array( 'first value', 'second value' );
$_POST['bottomdiameter'] = array( 'first value', 'second value' );
However, I would suggest changing your form names to this format instead:
name="diameters[0]...
Objective-C Static Class Level variables
...ing a Class Object in Apple's Objective-C docs.
– big_m
Oct 3 '11 at 16:02
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What is the Python equivalent of static variables inside a function?
...e at the top instead of the bottom, you can create a decorator:
def static_vars(**kwargs):
def decorate(func):
for k in kwargs:
setattr(func, k, kwargs[k])
return func
return decorate
Then use the code like this:
@static_vars(counter=0)
def foo():
foo.coun...
How do I setup a SSL certificate for an express.js server?
...
Other options for createServer are at: http://nodejs.org/api/tls.html#tls_tls_createserver_options_secureconnectionlistener
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GPU Emulator for CUDA programming without the hardware [closed]
...nstalled it and tried to run a simple
program:
#include <stdio.h>
__global__ void helloWorld() {
printf("Hello world! I am %d (Warp %d) from %d.\n",
threadIdx.x, threadIdx.x / warpSize, blockIdx.x);
}
int main() {
int blocks, threads;
scanf("%d%d", &blocks, &thr...
How to calculate moving average using NumPy?
... an off-by-one wrong indexing spotted by Bean in the code. EDIT
def moving_average(a, n=3) :
ret = np.cumsum(a, dtype=float)
ret[n:] = ret[n:] - ret[:-n]
return ret[n - 1:] / n
>>> a = np.arange(20)
>>> moving_average(a)
array([ 1., 2., 3., 4., 5., 6., 7....
How to get line count of a large file cheaply in Python?
...
One line, probably pretty fast:
num_lines = sum(1 for line in open('myfile.txt'))
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How to save an image locally using Python whose URL address I already know?
...wered Nov 27 '11 at 15:01
Liquid_FireLiquid_Fire
6,01522 gold badges2121 silver badges2222 bronze badges
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Open URL in same window and in same tab
...eed to use the name attribute:
window.open("https://www.youraddress.com","_self")
Edit: Url should be prepended with protocol. Without it tries to open relative url. Tested in Chrome 59, Firefox 54 and IE 11.
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