bitwise-operators
Using GMP bitshift with negative numbers
echo -1 >> 8; //returns -1 function gmp_shiftr($x,$n) { // shift right return(gmp_div($x,gmp_pow(2,$n)));[详细]
2023-03-22 09:38 分类:问答C++ Pack RGBA to unsigned int
With the following class, assuming RGBA are all between 0-255 开发者_运维问答class Color { public:[详细]
2023-03-22 03:51 分类:问答Remove a Paint Flag in Android
My code looks like this: TextView task_text = (TextView) view.findViewById(R.id.task_text); task_text.setPaintFlags( task_text.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);[详细]
2023-03-22 03:49 分类:问答what is the meaning of "<<" in TCL?
I know the \"<<\" is a开发者_StackOverflow社区 bit operation. but I do not understand what it exactly functions in TCL, and when should we use it?[详细]
2023-03-22 00:23 分类:问答Binary data handling and bitwise AND
I saw this code sample without any explanation: var xhr = new XMLHttpRequest(); xhr.open(\'GET\', \'/path/to/image.png\', true);[详细]
2023-03-20 09:08 分类:问答Bitwise shift in mysql
How can I make a bitwise sh开发者_Python百科ift in MySQL? Is there any specific instruction or operator? If not, how to simulate it optimally?Have a look at the bitwise operators in MySQL first: http:[详细]
2023-03-19 14:53 分类:问答Mod of power 2 on bitwise operators?
How does mod of power of 2 work on only lower order bits of a binary number (1011000111011010)? What is this number mod 2 to power 0, 2 to power 4?[详细]
2023-03-19 14:49 分类:问答Help with bitwise operations
I want to doublecheck some of my logic against a 3rd party function that I am using and I\'m not sure if I\'ve got the bitwise logic figured out correctly or not. Can someone give me a range of values[详细]
2023-03-19 04:09 分类:问答Why is ( Infinity | 0 ) === 0?
I\'m fiddling around with bitwise operators in JavaScript and there is one thing I find remarkable. The bitwise or operator returns 1 as output bit if one of the two input bits are 1.开发者_JS百科 So[详细]
2023-03-19 03:50 分类:问答use of the bitwise operators to pack multiple values in one int
Low level bit manipulation has never been my strong point. I will appreciate some help in understanding the following use case of bitwise operators.Consider...[详细]
2023-03-17 07:29 分类:问答