I have 8 bool variables, and I want to "merge" them into a byte. Is there an easy/preferred method to do this? How about the other way around, decoding a byte into 8 separate boolean values? I c...

I want to encode/compress some binary image data as a sequence if bits. (This sequence will, in general, have a length that does not fit neatly in a whole number of standard integer types.) How ca...

A struct with bitfields, even when "packed", seems to treat a bitfield's size (and alignment, too?) based on the specified int type. Could someone point to a C++ rule that defines that be...

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... int age, gender, height, packed_info...

Update: This is called a de Brujin torus, but I still need to figure out a simple algoritm in C#. http://en.wikipedia.org/wiki/De_Bruijn_torus http://datagenetics.com/blog/october22013/index.html...

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). ...

During a code review I've come across some code that defines a simple structure as follows: class foo { unsigned char a; unsigned char b; unsigned char c; } Elsewhere, an array of these objec...

I'm experimenting with optimizing parser combinators in C#. One possible optimization, when the serialized format matches the in-memory format, is to just do an (unsafe) memcpy of the data to be pa...

I wish to move bits 0,8,16,24 of a 32-bit value to bits 0,1,2,3 respectively. All other bits in the input and output will be zero. Obviously I can do that like this: c = c>>21 + c>>14...

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'...

To clarify my question, let's start off with an example program: #include <stdio.h> #pragma pack(push,1) struct cc { unsigned int a : 3; unsigned int b : 16; unsigned int c : 1; unsign...

Is there a library for C# that allows similar functionality to python's struct from the standard library? One can emulate the struct library quite closely with real aligned structs. But I didn't f...