Is there something special about the number 65535?

2¹⁶-1 & 2⁵ = 2⁵ (or? obviously ?)

What kind of specific projects can I do to master bitwise operations in C++? Also is there a canonical book? [closed]

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Using scoped enums for bit flags in C++

An enum X : int (C#) or enum class X : int (C++11) is a type that has a hidden inner field of int that can hold any value. In addition, a number of predefined constants of X are defined on the enum. It is possible to cast the enum to its integer value and vice versa. This is all true in both C# and C++11.

Concept of bit fields

Whenever I read a code like this:

Concept of bit fields

Whenever I read a code like this:

Using Power of 2 numbers to represent types

Let’s say that we have some values, represented by power of 2:

Using Power of 2 numbers to represent types

Let’s say that we have some values, represented by power of 2:

Using Power of 2 numbers to represent types

Let’s say that we have some values, represented by power of 2:

Next power of 2 for a number (in search for better “bit-twiddling” way)

I just wonder if there exists better (i.e. faster?) way to get the next
power of 2 for a given number than the following one (maybe some
better sort of “bit-twiddling” hack is possible?) …

Next power of 2 for a number (in search for better “bit-twiddling” way)

I just wonder if there exists better (i.e. faster?) way to get the next
power of 2 for a given number than the following one (maybe some
better sort of “bit-twiddling” hack is possible?) …