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汇编常用寄存器及指令基础总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的十六位寄存器,有9个标志位,某些汇编指令(大部份是涉及比较、算术或逻辑运算的指令)执行时,会将相关标志位置1或清0, 常碰到的标志位有零标志(ZF)、符号标志(SF)、溢出标志(OF)和进位标志(CF)
当一个程...
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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improve th...
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...
JavaScript/jQuery to download file via POST with JSON data
...as used here with PDFs: alexhadik.com/blog/2016/7/7/l8ztp8kr5lbctf5qns4l8t3646npqh
– Mateo Tibaquira
Jun 17 '17 at 10:34
...
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
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answered Jul 28 '10 at 23:43
mvdsmvds
...
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...
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
...
cannot download, $GOPATH not set
...en check using GO to see if it's configured properly:
$ go env
GOARCH="amd64"
GOBIN=""
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/usr/local/opt/go/bin"
GORACE=""
GOROOT="/usr/local/Cellar/go/1.4.2/libexec"
GOTOOLDIR="/usr/local/Cellar/go/1.4.2/libexec/pkg/tool/d...
