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How do you calculate log base 2 in Java for integers?
I use the following function to calculate log base 2 for integers:
10 Answers
10
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Visual Studio 64 bit?
Is there any 64 bit Visual Studio at all? Why not?
5 Answers
5
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Best way to obfuscate an e-mail address on a website?
...
A lightweight way to obfuscate the href of an anchor is to base64-encode it:
> btoa('mailto:email@example.com')
< "bWFpbHRvOmVtYWlsQGV4YW1wbGUuY29t"
And then include it hardcoded:
<a href="javascript:window.location.href=atob('bWFpbHRvOmVtYWlsQGV4YW1wbGUuY29t')">E-Mai...
maximum value of int
... trivially extended for unsigned types:
// We can use it to define limits based on actual compiler built-in types also:
#define INT_MAX SIGNED_MAX(int)
// based on the above, we can extend it for unsigned types also:
#define UNSIGNED_MAX(x) ( (SIGNED_MAX(x)<<1) | 1 ) // We reuse SIGNED_MA...
How to determine whether a given Linux is 32 bit or 64 bit?
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Try uname -m. Which is short of uname --machine and it outputs:
x86_64 ==> 64-bit kernel
i686 ==> 32-bit kernel
Otherwise, not for the Linux kernel, but for the CPU, you type:
cat /proc/cpuinfo
or:
grep flags /proc/cpuinfo
Under "flags" parameter, you will see various values...
Reading 64bit Registry from a 32bit application
... a c# unit test project that is compiled for AnyCPU. Our build server is a 64bit machine, and has a 64bit SQL Express instance installed.
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How to determine programmatically whether a particular process is 32-bit or 64-bit
...pplication/process (note: not the current process) is running in 32-bit or 64-bit mode?
7 Answers
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Programmer Puzzle: Encoding a chess board state throughout a game
...ll cater for a lot of previously mentioned issues.
But we can do better.
Base 13 Encoding
It is often helpful to think of the board position as a very large number. This is often done in computer science. For example, the halting problem treats a computer program (rightly) as a large number.
The...
cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
... 28 HTT Multi-Threading
29 TM Thermal Monitor
30 IA64 IA64 Capabilities
31 PBE Pending Break Enable
ECX定义如下（资料来自Intel）：
bit Name Description
---------------------------------------------------------
00 SSE3 ...
From inside of a Docker container, how do I connect to the localhost of the machine?
... submitted on March the 8th, 2019 and will hopefully be merged to the code base. Until then, a workaround is to use a container as described in qoomon's answer.
2020-01: some progress has been made. If all goes well, this should land in Docker 20.04
TLDR
Use --network="host" in your docker run ...