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Most common C# bitwise operations on enums
...= 2,
Three = 4,
Four = 8,
Five = 16,
Six = 32,
Seven = 64,
Eight = 128,
Nine = 256,
Ten = 512
}
class Program
{
static void Main(string[] args)
{
TestFlags f = TestFlags.Five; /* or any other enum */
bool result = false;
Stopwatch s ...
Generating Guids in Ruby
...("some-random-string")[8..16]
=> "2ebe5597f"
>> SecureRandom.base64(8).gsub("/","_").gsub(/=+$/,"")
=> "AEWQyovNFo0"
>> rand(36**8).to_s(36)
=> "uur0cj2h"
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App Inventor 2 构建纯血鸿蒙 HarmonyOS App · App Inventor 2 中文网
...个证书？
Q5：和 iOS 相比，鸿蒙的证书流程更简单还是更复杂？
参考链接
« 返回首页
本文详细讲解在 App Inventor 2 中文网上编译 HarmonyOS NEXT 应用（HAP包）的全流程，包括证书申请、签名机制、测试方法，并与 Androi...
Is it possible to use argsort in descending order?
...ns, 1000000 loops each)
>>> timeit avgDists.argsort()[::-1][:n]
1.64 µs ± 3.39 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
>>> timeit avgDists.argsort()[-n:][::-1]
1.64 µs ± 3.66 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
For larger arrays...
Creating a comma separated list from IList or IEnumerable
...3539 Hz, Resolution=309.2587 ns, Timer=TSC
[Host] : Clr 4.0.30319.42000, 64bit RyuJIT-v4.6.1637.0
Clr : Clr 4.0.30319.42000, 64bit RyuJIT-v4.6.1637.0
Core : .NET Core 4.6.25009.03, 64bit RyuJIT
Method | Job | Runtime | Mean | Error | StdDev | Min | ...
Generating a SHA-256 hash from the Linux command line
...
acdcjunior
106k2626 gold badges264264 silver badges256256 bronze badges
answered Jul 28 '10 at 23:43
mvdsmvds
...
What is the difference between quiet NaN and signaling NaN?
...-Wall -Wextra -pedantic -o main.out main.cpp
./main.out
output on my x86_64 machine:
qnan 7fc00000
snan 7fa00000
inf 7f800000
-inf ff800000
nan0 7fc00000
nan1 7fc00001
nan2 7fc00002
0/0 ffc00000
sqrt ffc00000
We can also execute the program on aarch64 with QEMU user mode:
aarch64-linux-gnu-g...
node.js hash string?
... Any way to change the length of the string? Not only 32 characters, 64 or 128 or a different number.
– Mikel
Sep 2 '15 at 11:17
...
Using GPU from a docker container?
... ubuntu server 14.04 and i'm using the latest cuda (6.0.37 for linux 13.04 64 bits).
Preparation
Install nvidia driver and cuda on your host. (it can be a little tricky so i will suggest you follow this guide https://askubuntu.com/questions/451672/installing-and-testing-cuda-in-ubuntu-14-04)
AT...
CREATE TABLE IF NOT EXISTS equivalent in SQL Server [duplicate]
...re name='cars' and xtype='U')
create table cars (
Name varchar(64) not null
)
go
The above will create a table called cars if the table does not already exist.
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