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What is the best algorithm for overriding GetHashCode?
... quite how important that is.)
This is better than the common practice of XORing hashcodes for two main reasons. Suppose we have a type with two int fields:
XorHash(x, x) == XorHash(y, y) == 0 for all x, y
XorHash(x, y) == XorHash(y, x) for all x, y
By the way, the earlier algorithm is the one c...
What's the (hidden) cost of Scala's lazy val?
...) and initializes the target field in a synchronized block if the relevant xor of the bitmap indicates it is necessary.
Using:
class Something {
lazy val foo = getFoo
def getFoo = "foo!"
}
produces sample bytecode:
0 aload_0 [this]
1 getfield blevins.example.Something.bitmap$0 : int [15...
Python set to list
...e', 'getattribute', 'gt', 'hash', 'iand', 'init', 'ior', 'isub', 'iter', 'ixor', 'le', 'len', 'lt', 'ne', 'new', 'or', 'rand', 'reduce', 'reduce_ex', 'repr', 'ror', 'rsub', 'rxor', 'setattr', 'sizeof', 'str', 'sub', 'subclasshook', 'xor', 'add', 'clear', 'copy', 'difference', 'difference_update', 'd...
Peak detection in a 2D array
...ning only peaks,
#by removing the background from the local_max mask (xor operation)
detected_peaks = local_max ^ eroded_background
return detected_peaks
#applying the detection and plotting results
for i, paw in enumerate(paws):
detected_peaks = detect_peaks(paw)
pp.subplot(...
Strange out of memory issue while loading an image to a Bitmap object
... - There's a big problem with that code. ^ doesn't raise 2 to a power, it xors 2 with the result. You want Math.pow(2.0, ...). Otherwise, this looks good.
– DougW
Oct 13 '10 at 7:42
...
Get difference between two lists
...
Can be done using python XOR operator.
This will remove the duplicates in each list
This will show difference of temp1 from temp2 and temp2 from temp1.
set(temp1) ^ set(temp2)
...
bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...的使用。每一小节都是一行的命令，你可以立马运行并看到运行效果。该教程系列用来介绍bpftrace的概念。关于bpftrace的完整参考，见bpftr 该教程通过12个简单小节帮助你了解bpftrace的使用。每一小节都是一行的命令，你可以立...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...代码执行过程中，没有出现异常的话，那么控制流将转入到__except子句之后的代码模块中；
3. 否则，如果出现异常的话，那么控制流将进入到__except后面的表达式中，也即首先计算这个表达式的值，之后再根据这个值，来决定...
How do you set, clear, and toggle a single bit?
... string with the bitwise NOT operator (~), then AND it.
Toggling a bit
The XOR operator (^) can be used to toggle a bit.
number ^= 1UL << n;
That will toggle the nth bit of number.
Checking a bit
You didn't ask for this, but I might as well add it.
To check a bit, shift the number n to the ri...
adito-gateway -华为云免费SSL VPN解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...件SSL VPN解决方案1、yum install ant2.下载adito-0.9.1-bin并拷贝到 mnt目录下3....免费的SSL VPN adito-gateway ssl vpn之华为云软件SSL VPN解决方案
1、 yum install ant
2. 下载adito-0.9.1-bin 并拷贝到 /mnt目录下
3. 解压并移动到 /usr/
[root@adito...