bit-shift

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Ever any performance different between Java >> and >>> right shift operators?

Is there ever reason to think the >> (signed) and >>> (unsigned) right bit-shift operators in Java would perform differently? I can\'t detect any difference on my machine.[详细]

2022-12-25 00:12 分类：问答
How to produce 64 bit masks?

Based on the following simple program the bitwise left shift operator works only for 32 bits. Is it true?[详细]

2022-12-23 15:23 分类：问答
What do two left-angle brackets "<<" mean in C#?

Basically the questions in the title. I\'m looking at the MVC 2 source code: [Flags] public enum HttpVerbs {[详细]

2022-12-23 14:26 分类：问答
Bitshift in javascript

I\'ve got a really big number: 5799218898. And want to shift it right to 13 bits. So, windows-calculator or python gives me:[详细]

2022-12-21 16:50 分类：问答
C# bit shift: is this behavior in the spec, a bug, or fortuitous?

I was working with bit shift operators (see my question Bit Array Equality) and a SO user pointed out a bug in my calculation of my shift operan开发者_运维知识库d--I was calculating a range of [1,32][详细]

2022-12-21 15:45 分类：问答
Why arithmetic shift halfs a number only in SOME incidents?

Hey, I\'m self-learning about bitwise, and I saw som开发者_运维百科ewhere in the internet that arithmetic shift (>>) by one halfs a number. I wanted to test it:[详细]

2022-12-21 10:42 分类：问答
PHP Left Shift giving two answers on two different machines

I\'m very confused about behaviour of PHP\'s left shift function. I\'m using it on two different machines (dev and hosting), and they are giving me different answers. I\'ve tracked it down to this cal[详细]

2022-12-20 16:21 分类：问答
Java bitshift strangeness

Java has 2 bitshift operators for right shifts: >> shifts right, and is dependant on the sign bit for the sign of the result[详细]

2022-12-18 11:15 分类：问答
When to use Shift operators << >> in C#?

I was studying shift operators in C#, trying to find out when to use them in my code. I found an answer but for Java, you could:[详细]

2022-12-14 22:23 分类：问答
Difference between >>> and >> operators [duplicate]

This question already has answers here: 开发者_如何学C Difference between >>> and >>[详细]

2022-12-14 20:17 分类：问答