bit-packing
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Packing two shorts into one int, dealing with negative and positive
I\'m making a class PackedUnsigned1616 which stores two unsigned shorts in one int, and a class PackedSigned1616 which stores two signed shorts in one int. I\'ve read up on bitwise operations, but I\'[详细]
2023-03-03 23:41 分类：问答What is VC++ doing when packing bitfields?
To clarify my question, let\'s start off with an example program: #include <stdio.h> #pragma pack(push,1)[详细]
2023-01-20 10:28 分类：问答Bit packing of array of integers
I have an array of integers, lets assume they are of type int64_t. Now, I know that only every first n bits of every integer are meaningful (that is, I know that they are limited by some bounds).[详细]
2022-12-22 00:22 分类：问答C++ Data Member Alignment and Array Packing
During a code review I\'ve come across some code that defines a simple structure as follows: class foo {[详细]
2022-12-10 18:20 分类：问答What is a better method for packing 4 bytes into 3 than this?
I have an array of values all well within the range 0 - 63, and decided I could pack every 4 bytes into 3 because the values only require 6 bits and I could use the extra 2bits to store the first 2 bi[详细]
2022-12-10 13:36 分类：问答
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